Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Vulnerabilities
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2026-54513
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54513
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.712%
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-54512
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind's PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled and a type identifier contains generic parameters (i.e. the type ID string contains <), DatabindContext._resolveAndValidateGeneric() validates only the raw container class name (the substring before <) against the configured PTV. If the container type is approved, the method parses the full canonical type string via TypeFactory.constructFromCanonical() and returns the fully parameterized type without ever validating the nested type arguments against the PTV. The nested type arguments are then resolved, instantiated, and populated as beans during deserialization. An attacker who controls the type ID can therefore place a denied class as a generic type parameter of an allowed container — for example java.util.ArrayList<com.evil.Gadget> when only java.util.ArrayList is allow-listed. The container passes the PTV check; com.evil.Gadget is loaded via Class.forName(name, true, loader), instantiated, and its properties are set from attacker-controlled JSON. This completely bypasses an explicitly configured PTV allow-list. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54512
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.779%
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-2.18.8
⛑️ Automatic Remediation will be attempted for this issue.
WS-2026-0003
Vulnerable Library - jackson-core-2.21.0.jar
Core Jackson processing abstractions (aka Streaming API), implementation for JSON
Library home page: https://github.com/FasterXML/jackson-core
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.21.0/1f7c3f82e6e2ef5def0a12d7dd754e26f0c0ae28/jackson-core-2.21.0.jar
Dependency Hierarchy:
- jackson-databind-2.21.0.jar (Root Library)
- ❌ jackson-core-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
The non-blocking (async) JSON parser in jackson-core bypasses the maxNumberLength constraint (default: 1000 characters) defined in StreamReadConstraints. This allows an attacker to send JSON with arbitrarily long numbers through the async parser API, leading to excessive memory allocation and potential CPU exhaustion, resulting in a Denial of Service (DoS).
The standard synchronous parser correctly enforces this limit, but the async parser fails to do so, creating an inconsistent enforcement policy.
Publish Date: 2026-03-02
URL: WS-2026-0003
Threat Assessment
Exploit Maturity: Not Defined
EPSS:
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-72hv-8253-57qq
Release Date: 2026-03-02
Fix Resolution: com.fasterxml.jackson.core:jackson-core:2.18.6,https://github.com/FasterXML/jackson-core.git - jackson-core-2.21.1,https://github.com/FasterXML/jackson-core.git - jackson-core-2.18.6,tools.jackson.core:jackson-core:3.1.0,https://github.com/FasterXML/jackson-core.git - jackson-core-3.1.0
CVE-2026-68494
Vulnerable Library - jackson-core-2.21.0.jar
Core Jackson processing abstractions (aka Streaming API), implementation for JSON
Library home page: https://github.com/FasterXML/jackson-core
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.21.0/1f7c3f82e6e2ef5def0a12d7dd754e26f0c0ae28/jackson-core-2.21.0.jar
Dependency Hierarchy:
- jackson-databind-2.21.0.jar (Root Library)
- ❌ jackson-core-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
The fix released in jackson-core 2.18.6 and 2.21.1 for CVE-2026-18401 (GHSA-72hv-8253-57qq, number length constraint bypass in the non-blocking parser) is incomplete. This record covers the remaining bypass.
The earlier fix wired validateIntegerLength() into a new _setIntLength() helper and invoked it wherever the integer portion of a number is decided: a terminator byte arrives, a '.' or 'e'/'E' is seen, or input ends inside a fully buffered value. It was not invoked on the attacker-relevant path where the parser runs out of input while still inside the MINOR_NUMBER_INTEGER_DIGITS minor state and returns NOT_AVAILABLE to the caller.
As a result, an attacker who streams JSON to a non-blocking parser in many small chunks, without ever sending a terminator byte, keeps the parser inside MINOR_NUMBER_INTEGER_DIGITS indefinitely. _textBuffer.expandCurrentSegment() grows the accumulator on every chunk while validateIntegerLength() is never called. The accumulator is bounded only by maxStringLength (20 MiB by default) rather than by maxNumberLength (1000 by default), an amplification of roughly 20,000x over the documented limit. Because Java char values occupy two bytes, a single connection can be driven to approximately 40 MiB of heap before the validator finally fires when the value completes.
The equivalent fraction-path code is correct: _finishFloatFraction() calls _setFractLength() before its NOT_AVAILABLE return. The missing call affects the integer-digit paths in _startPositiveNumber(), _startNegativeNumber() and _finishNumberIntegralPart() in NonBlockingUtf8JsonParserBase.
Impact: reactive frameworks such as Spring WebFlux/Reactor, Quarkus, Helidon and Vert.x feed inbound HTTP or gRPC bytes to the async parser as they arrive, which is precisely the chunked-feed shape required. Operators who set StreamReadConstraints.maxNumberLength expecting it to cap memory per number value do not get that guarantee; memory accumulates per concurrent connection and attacker-controlled concurrency can exhaust the JVM heap. The synchronous parsers (UTF8StreamJsonParser, ReaderBasedJsonParser) and the async parser operating on complete input are not affected.
Exploitation requires only the ability to stream data to a parsing endpoint; no privileges or user interaction are needed.
This issue affects com.fasterxml.jackson.core:jackson-core from version 2.15.0 through 2.18.7, and from 2.19.0 through 2.21.3, and tools.jackson.core:jackson-core from 3.0.0 through 3.1.3. Versions prior to 2.15.0 are not affected, because StreamReadConstraints -- which defines the maxNumberLength setting -- was first introduced in jackson-core 2.15.0, so no such constraint exists to be bypassed in earlier releases. Note that GHSA-r7wm-3cxj-wff9 states the affected 2.x range without a lower bound. The 2.22.x and 3.2.x release lines are not affected: those branches were created after the fix commit landed on 2026-05-21 and therefore contain it from their initial releases (2.22.0, tagged 2026-06-03, and 3.2.0, tagged 2026-06-08).
Publish Date: 2026-08-04
URL: CVE-2026-68494
Threat Assessment
Exploit Maturity: Not Defined
EPSS:
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-08-04
Fix Resolution (com.fasterxml.jackson.core:jackson-core): 2.21.4
Direct dependency fix Resolution (com.fasterxml.jackson.core:jackson-databind): 2.21.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-59889
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.
Publish Date: 2026-07-14
URL: CVE-2026-59889
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.346%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: High
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-5gvw-p9qm-jgwh
Release Date: 2026-07-14
Fix Resolution: 2.21.5
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-59888
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.15.0 until 2.18.8, 2.21.4, and 3.1.4, Java Records using a PropertyNamingStrategy can bypass @JsonIgnore because POJOPropertiesCollector._removeUnwantedIgnorals() records an ignored component under its original implicit name before _renameUsing() applies the naming strategy, allowing the renamed JSON key to be assigned to the Record constructor parameter. This issue is fixed in versions 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-07-14
URL: CVE-2026-59888
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.247%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-3pjw-73gf-8qr5
Release Date: 2026-07-14
Fix Resolution: 2.21.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-54518
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54518
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.264%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-54517
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, in BeanDeserializer._deserializeUsingPropertyBased, the active-view (@JsonView) filter was applied only to creator properties; the regular property-buffering branch performed no prop.visibleInView(activeView) check. A change making SetterlessProperty.isMerging() return true routed setterless Collection/Map properties through this unguarded path, so a setterless collection annotated with a restricted @JsonView is populated from attacker JSON even when the active view excludes it. This vulnerability is fixed in 2.21.4 and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54517
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.297%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-54516
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, POJOPropertiesCollector._renameProperties() allows a property with @JsonProperty("renamed") on the getter and @JsonIgnore on the setter to be renamed rather than dropped. With MapperFeature.INFER_PROPERTY_MUTATORS enabled (default), the private backing field is retained; during deserialization BeanDeserializerFactory.addBeanProps() sees hasField()==true, builds a FieldProperty, and makes the backing field writable. An attacker supplying the renamed JSON key writes the backing field directly, bypassing the @JsonIgnore on the setter. This vulnerability is fixed in 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54516
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.283%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-54515
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by _handleByNameInclusion(), producing a contextual deserializer whose BeanPropertyMap has the ignored properties removed. The subsequent per-property case-insensitivity block (triggered by @JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds from this._beanProperties (the original, unfiltered map) instead of contextual._beanProperties, then overwrites the filtered map — restoring every property _handleByNameInclusion had just removed. The ignored property becomes writable again. This vulnerability is fixed in 2.18.9, 2.21.5, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54515
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.345%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: 2.21.5
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-54514
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
- ❌ jackson-databind-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, JDKFromStringDeserializer constructed InetSocketAddress with new InetSocketAddress(host, port), which performs eager DNS name resolution for hostname inputs at deserialization time. An application that binds untrusted JSON into a type containing an InetSocketAddress field issues an attacker-chosen DNS query during readValue, before any application-level validation or connect logic. The fix uses InetSocketAddress.createUnresolved(host, port), deferring DNS to an explicit connect. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54514
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.219%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: None
- Availability Impact: None
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-2.18.8
⛑️ Automatic Remediation will be attempted for this issue.
CVE-2026-18401
Vulnerable Library - jackson-core-2.21.0.jar
Core Jackson processing abstractions (aka Streaming API), implementation for JSON
Library home page: https://github.com/FasterXML/jackson-core
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.21.0/1f7c3f82e6e2ef5def0a12d7dd754e26f0c0ae28/jackson-core-2.21.0.jar
Dependency Hierarchy:
- jackson-databind-2.21.0.jar (Root Library)
- ❌ jackson-core-2.21.0.jar (Vulnerable Library)
Found in base branch: main
Vulnerability Details
The non-blocking (asynchronous) JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints (default: 1000 characters). An attacker able to submit JSON to an application that uses the async parser API can supply a number token of arbitrary length, leading to excessive memory allocation and potential CPU exhaustion, resulting in a denial of service.
The synchronous parser enforces this limit correctly, so the constraint is applied inconsistently depending on which parsing API the application uses.
Root cause: the async parsing path in NonBlockingUtf8JsonParserBase and related classes never invokes the number length validation methods. Number parsing methods such as _finishNumberIntegralPart() accumulate digits into the TextBuffer without any length check, then call _valueComplete() to finalize the token. _valueComplete() does not call resetInt() or resetFloat(), which are the methods in ParserBase where validateIntegerLength() and validateFPLength() are performed. Because that validation step is skipped, maxNumberLength is never enforced on the async code path.
Impact: an attacker sending a JSON document containing an arbitrarily long number to an application using the async parser (for example a Spring WebFlux or other reactive application) can cause unbounded allocation in the TextBuffer and an OutOfMemoryError. If the application subsequently calls getBigIntegerValue() or getDecimalValue(), the JVM may additionally be tied up in O(n^2) BigInteger parsing, causing CPU-based denial of service.
No privileges or user interaction beyond the ability to submit data for parsing are required.
This issue affects com.fasterxml.jackson.core:jackson-core from version 2.15.0 through 2.18.5 and from 2.19.0 through 2.21.0, and tools.jackson.core:jackson-core from 3.0.0 through 3.0.x.
Versions prior to 2.15.0 are not affected, because StreamReadConstraints -- which defines the maxNumberLength setting -- was first introduced in jackson-core 2.15.0, so no such constraint exists to be bypassed in earlier releases. Note that GHSA-72hv-8253-57qq records the lower bound of the affected 2.x range as 2.0.0.
Publish Date: 2026-08-04
URL: CVE-2026-18401
Threat Assessment
Exploit Maturity: Not Defined
EPSS:
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Release Date: 2026-08-04
Fix Resolution (com.fasterxml.jackson.core:jackson-core): 2.21.1
Direct dependency fix Resolution (com.fasterxml.jackson.core:jackson-databind): 2.21.1
⛑️ Automatic Remediation will be attempted for this issue.
⛑️Automatic Remediation will be attempted for this issue.
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Vulnerabilities
*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54513
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.712%
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind's PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled and a type identifier contains generic parameters (i.e. the type ID string contains <), DatabindContext._resolveAndValidateGeneric() validates only the raw container class name (the substring before <) against the configured PTV. If the container type is approved, the method parses the full canonical type string via TypeFactory.constructFromCanonical() and returns the fully parameterized type without ever validating the nested type arguments against the PTV. The nested type arguments are then resolved, instantiated, and populated as beans during deserialization. An attacker who controls the type ID can therefore place a denied class as a generic type parameter of an allowed container — for example java.util.ArrayList<com.evil.Gadget> when only java.util.ArrayList is allow-listed. The container passes the PTV check; com.evil.Gadget is loaded via Class.forName(name, true, loader), instantiated, and its properties are set from attacker-controlled JSON. This completely bypasses an explicitly configured PTV allow-list. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54512
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.779%
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-2.18.8
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-core-2.21.0.jar
Core Jackson processing abstractions (aka Streaming API), implementation for JSON
Library home page: https://github.com/FasterXML/jackson-core
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.21.0/1f7c3f82e6e2ef5def0a12d7dd754e26f0c0ae28/jackson-core-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
The non-blocking (async) JSON parser in jackson-core bypasses the maxNumberLength constraint (default: 1000 characters) defined in StreamReadConstraints. This allows an attacker to send JSON with arbitrarily long numbers through the async parser API, leading to excessive memory allocation and potential CPU exhaustion, resulting in a Denial of Service (DoS).
The standard synchronous parser correctly enforces this limit, but the async parser fails to do so, creating an inconsistent enforcement policy.
Publish Date: 2026-03-02
URL: WS-2026-0003
Threat Assessment
Exploit Maturity: Not Defined
EPSS:
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-72hv-8253-57qq
Release Date: 2026-03-02
Fix Resolution: com.fasterxml.jackson.core:jackson-core:2.18.6,https://github.com/FasterXML/jackson-core.git - jackson-core-2.21.1,https://github.com/FasterXML/jackson-core.git - jackson-core-2.18.6,tools.jackson.core:jackson-core:3.1.0,https://github.com/FasterXML/jackson-core.git - jackson-core-3.1.0
Vulnerable Library - jackson-core-2.21.0.jar
Core Jackson processing abstractions (aka Streaming API), implementation for JSON
Library home page: https://github.com/FasterXML/jackson-core
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.21.0/1f7c3f82e6e2ef5def0a12d7dd754e26f0c0ae28/jackson-core-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
The fix released in jackson-core 2.18.6 and 2.21.1 for CVE-2026-18401 (GHSA-72hv-8253-57qq, number length constraint bypass in the non-blocking parser) is incomplete. This record covers the remaining bypass.
The earlier fix wired validateIntegerLength() into a new _setIntLength() helper and invoked it wherever the integer portion of a number is decided: a terminator byte arrives, a '.' or 'e'/'E' is seen, or input ends inside a fully buffered value. It was not invoked on the attacker-relevant path where the parser runs out of input while still inside the MINOR_NUMBER_INTEGER_DIGITS minor state and returns NOT_AVAILABLE to the caller.
As a result, an attacker who streams JSON to a non-blocking parser in many small chunks, without ever sending a terminator byte, keeps the parser inside MINOR_NUMBER_INTEGER_DIGITS indefinitely. _textBuffer.expandCurrentSegment() grows the accumulator on every chunk while validateIntegerLength() is never called. The accumulator is bounded only by maxStringLength (20 MiB by default) rather than by maxNumberLength (1000 by default), an amplification of roughly 20,000x over the documented limit. Because Java char values occupy two bytes, a single connection can be driven to approximately 40 MiB of heap before the validator finally fires when the value completes.
The equivalent fraction-path code is correct: _finishFloatFraction() calls _setFractLength() before its NOT_AVAILABLE return. The missing call affects the integer-digit paths in _startPositiveNumber(), _startNegativeNumber() and _finishNumberIntegralPart() in NonBlockingUtf8JsonParserBase.
Impact: reactive frameworks such as Spring WebFlux/Reactor, Quarkus, Helidon and Vert.x feed inbound HTTP or gRPC bytes to the async parser as they arrive, which is precisely the chunked-feed shape required. Operators who set StreamReadConstraints.maxNumberLength expecting it to cap memory per number value do not get that guarantee; memory accumulates per concurrent connection and attacker-controlled concurrency can exhaust the JVM heap. The synchronous parsers (UTF8StreamJsonParser, ReaderBasedJsonParser) and the async parser operating on complete input are not affected.
Exploitation requires only the ability to stream data to a parsing endpoint; no privileges or user interaction are needed.
This issue affects com.fasterxml.jackson.core:jackson-core from version 2.15.0 through 2.18.7, and from 2.19.0 through 2.21.3, and tools.jackson.core:jackson-core from 3.0.0 through 3.1.3. Versions prior to 2.15.0 are not affected, because StreamReadConstraints -- which defines the maxNumberLength setting -- was first introduced in jackson-core 2.15.0, so no such constraint exists to be bypassed in earlier releases. Note that GHSA-r7wm-3cxj-wff9 states the affected 2.x range without a lower bound. The 2.22.x and 3.2.x release lines are not affected: those branches were created after the fix commit landed on 2026-05-21 and therefore contain it from their initial releases (2.22.0, tagged 2026-06-03, and 3.2.0, tagged 2026-06-08).
Publish Date: 2026-08-04
URL: CVE-2026-68494
Threat Assessment
Exploit Maturity: Not Defined
EPSS:
CVSS 3 Score Details (7.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-08-04
Fix Resolution (com.fasterxml.jackson.core:jackson-core): 2.21.4
Direct dependency fix Resolution (com.fasterxml.jackson.core:jackson-databind): 2.21.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1, UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.
Publish Date: 2026-07-14
URL: CVE-2026-59889
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.346%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: Low
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: High
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-5gvw-p9qm-jgwh
Release Date: 2026-07-14
Fix Resolution: 2.21.5
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.15.0 until 2.18.8, 2.21.4, and 3.1.4, Java Records using a PropertyNamingStrategy can bypass @JsonIgnore because POJOPropertiesCollector._removeUnwantedIgnorals() records an ignored component under its original implicit name before _renameUsing() applies the naming strategy, allowing the renamed JSON key to be assigned to the Record constructor parameter. This issue is fixed in versions 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-07-14
URL: CVE-2026-59888
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.247%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-3pjw-73gf-8qr5
Release Date: 2026-07-14
Fix Resolution: 2.21.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, UnwrappedPropertyHandler.processUnwrappedCreatorProperties() replays buffered JSON into creator parameters but never consults prop.visibleInView(activeView). The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both @JsonView(AdminView.class) and @JsonUnwrapped is populated from attacker JSON even when a more restrictive view is active. This vulnerability is fixed in 2.21.4 and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54518
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.264%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, in BeanDeserializer._deserializeUsingPropertyBased, the active-view (@JsonView) filter was applied only to creator properties; the regular property-buffering branch performed no prop.visibleInView(activeView) check. A change making SetterlessProperty.isMerging() return true routed setterless Collection/Map properties through this unguarded path, so a setterless collection annotated with a restricted @JsonView is populated from attacker JSON even when the active view excludes it. This vulnerability is fixed in 2.21.4 and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54517
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.297%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, POJOPropertiesCollector._renameProperties() allows a property with @JsonProperty("renamed") on the getter and @JsonIgnore on the setter to be renamed rather than dropped. With MapperFeature.INFER_PROPERTY_MUTATORS enabled (default), the private backing field is retained; during deserialization BeanDeserializerFactory.addBeanProps() sees hasField()==true, builds a FieldProperty, and makes the backing field writable. An attacker supplying the renamed JSON key writes the backing field directly, bypassing the @JsonIgnore on the setter. This vulnerability is fixed in 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54516
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.283%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-3.1.4
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.8.0 until 2.18.9, 2.21.5, and 3.1.4, in BeanDeserializerBase.createContextual(), per-property @JsonIgnoreProperties exclusions are applied by _handleByNameInclusion(), producing a contextual deserializer whose BeanPropertyMap has the ignored properties removed. The subsequent per-property case-insensitivity block (triggered by @JsonFormat(ACCEPT_CASE_INSENSITIVE_PROPERTIES)) rebuilds from this._beanProperties (the original, unfiltered map) instead of contextual._beanProperties, then overwrites the filtered map — restoring every property _handleByNameInclusion had just removed. The ignored property becomes writable again. This vulnerability is fixed in 2.18.9, 2.21.5, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54515
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.345%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: 2.21.5
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-databind-2.21.0.jar
General data-binding functionality for Jackson: works on core streaming API
Library home page: https://github.com/FasterXML/jackson
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-databind/2.21.0/a6b96ee168ca8734a293b6dc70acd5d495119521/jackson-databind-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, JDKFromStringDeserializer constructed InetSocketAddress with new InetSocketAddress(host, port), which performs eager DNS name resolution for hostname inputs at deserialization time. An application that binds untrusted JSON into a type containing an InetSocketAddress field issues an attacker-chosen DNS query during readValue, before any application-level validation or connect logic. The fix uses InetSocketAddress.createUnresolved(host, port), deferring DNS to an explicit connect. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Publish Date: 2026-06-23
URL: CVE-2026-54514
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.219%
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: Low
- Integrity Impact: None
- Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-06-23
Fix Resolution: https://github.com/FasterXML/jackson-databind.git - jackson-databind-2.18.8
⛑️ Automatic Remediation will be attempted for this issue.
Vulnerable Library - jackson-core-2.21.0.jar
Core Jackson processing abstractions (aka Streaming API), implementation for JSON
Library home page: https://github.com/FasterXML/jackson-core
Path to dependency file: /build.gradle
Path to vulnerable library: /tmp/containerbase/cache/.gradle/caches/modules-2/files-2.1/com.fasterxml.jackson.core/jackson-core/2.21.0/1f7c3f82e6e2ef5def0a12d7dd754e26f0c0ae28/jackson-core-2.21.0.jar
Dependency Hierarchy:
Found in base branch: main
Vulnerability Details
The non-blocking (asynchronous) JSON parser in jackson-core does not enforce the maxNumberLength constraint defined in StreamReadConstraints (default: 1000 characters). An attacker able to submit JSON to an application that uses the async parser API can supply a number token of arbitrary length, leading to excessive memory allocation and potential CPU exhaustion, resulting in a denial of service.
The synchronous parser enforces this limit correctly, so the constraint is applied inconsistently depending on which parsing API the application uses.
Root cause: the async parsing path in NonBlockingUtf8JsonParserBase and related classes never invokes the number length validation methods. Number parsing methods such as _finishNumberIntegralPart() accumulate digits into the TextBuffer without any length check, then call _valueComplete() to finalize the token. _valueComplete() does not call resetInt() or resetFloat(), which are the methods in ParserBase where validateIntegerLength() and validateFPLength() are performed. Because that validation step is skipped, maxNumberLength is never enforced on the async code path.
Impact: an attacker sending a JSON document containing an arbitrarily long number to an application using the async parser (for example a Spring WebFlux or other reactive application) can cause unbounded allocation in the TextBuffer and an OutOfMemoryError. If the application subsequently calls getBigIntegerValue() or getDecimalValue(), the JVM may additionally be tied up in O(n^2) BigInteger parsing, causing CPU-based denial of service.
No privileges or user interaction beyond the ability to submit data for parsing are required.
This issue affects com.fasterxml.jackson.core:jackson-core from version 2.15.0 through 2.18.5 and from 2.19.0 through 2.21.0, and tools.jackson.core:jackson-core from 3.0.0 through 3.0.x.
Versions prior to 2.15.0 are not affected, because StreamReadConstraints -- which defines the maxNumberLength setting -- was first introduced in jackson-core 2.15.0, so no such constraint exists to be bypassed in earlier releases. Note that GHSA-72hv-8253-57qq records the lower bound of the affected 2.x range as 2.0.0.
Publish Date: 2026-08-04
URL: CVE-2026-18401
Threat Assessment
Exploit Maturity: Not Defined
EPSS:
CVSS 3 Score Details (5.3)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Release Date: 2026-08-04
Fix Resolution (com.fasterxml.jackson.core:jackson-core): 2.21.1
Direct dependency fix Resolution (com.fasterxml.jackson.core:jackson-databind): 2.21.1
⛑️ Automatic Remediation will be attempted for this issue.
⛑️Automatic Remediation will be attempted for this issue.