diff --git a/NEWS b/NEWS
index 95a0ab97ee1f..caddbd717490 100644
--- a/NEWS
+++ b/NEWS
@@ -34,6 +34,10 @@ PHP                                                                        NEWS
   . Fixed bug GH-21468 (Segfault in file_get_contents w/ a https URL
     and a proxy set). (CVE-2026-12184) (ndossche)
 
+- Zip:
+  . Fixed bug GH-21705 (ZipArchive::getFromIndex() ignores
+    ZipArchive::FL_UNCHANGED for deleted entries). (Weilin Du)
+
 02 Jul 2026, PHP 8.6.0alpha1
 
 - Core:
diff --git a/ext/zip/php_zip.c b/ext/zip/php_zip.c
index f231b3ad9ef2..5df4d47740a8 100644
--- a/ext/zip/php_zip.c
+++ b/ext/zip/php_zip.c
@@ -2870,7 +2870,7 @@ static void php_zip_get_from(INTERNAL_FUNCTION_PARAMETERS, int type) /* {{{ */
 
 		ZIP_FROM_OBJECT(intern, self);
 
-		PHP_ZIP_STAT_INDEX(intern, index, 0, sb);
+		PHP_ZIP_STAT_INDEX(intern, index, flags, sb);
 	}
 
 	if (sb.size < 1) {
diff --git a/ext/zip/tests/bug_gh21705.phpt b/ext/zip/tests/bug_gh21705.phpt
new file mode 100644
index 000000000000..41dabb224510
--- /dev/null
+++ b/ext/zip/tests/bug_gh21705.phpt
@@ -0,0 +1,33 @@
+--TEST--
+ZipArchive::getFromIndex() honors FL_UNCHANGED for deleted entries
+--EXTENSIONS--
+zip
+--FILE--
+<?php
+$name = __DIR__ . '/bug_gh21705.zip';
+@unlink($name);
+$zip = new ZipArchive;
+$zip->open($name, ZipArchive::CREATE);
+$zip->addFromString('foo.txt', 'foo');
+$zip->addFromString('bar.txt', 'bar');
+$zip->close();
+
+$zip = new ZipArchive;
+$zip->open($name);
+
+$index = $zip->locateName('bar.txt');
+$zip->deleteName('bar.txt');
+
+var_dump($zip->getFromName('bar.txt', 0, ZipArchive::FL_UNCHANGED));
+var_dump($zip->getFromIndex($index, 0, ZipArchive::FL_UNCHANGED));
+
+$zip->close();
+?>
+--CLEAN--
+<?php
+$name = __DIR__ . '/bug_gh21705.zip';
+@unlink($name);
+?>
+--EXPECT--
+string(3) "bar"
+string(3) "bar"