net: expand BlockList.PRIVATE_RANGES (unspecified, CGNAT, benchmarking) - #65204
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SashaMIT wants to merge 2 commits into
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net: expand BlockList.PRIVATE_RANGES (unspecified, CGNAT, benchmarking)#65204SashaMIT wants to merge 2 commits into
SashaMIT wants to merge 2 commits into
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PRIVATE_RANGES is documented as covering private, loopback, and link-local ranges used to block non-routable addresses. It already includes 127.0.0.0/8 and ::1/128 but omitted the IPv4 "this" network (0.0.0.0/8) and the IPv6 unspecified address (::/128), which are common alternate localhost spellings.
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Review requested:
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Include RFC 6598 (100.64.0.0/10) and RFC 2544 (198.18.0.0/15) so the helper matches common non-global IPv4 space used by carrier NAT and benchmarking labs.
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Follow-up commit on this branch: also include RFC 6598 CGNAT ( Same unreleased-API helper surface as the |
SashaMIT
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jasnell
approved these changes
Aug 11, 2026
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Summary
BlockList.PRIVATE_RANGESis documented as a convenience list of private, loopback, and link-local ranges for blocking non-routable addresses. It already includes127.0.0.0/8and::1/128, but omitted:0.0.0.0/8(IPv4 "this" network / unspecified; common alternate localhost spelling)::/128(IPv6 unspecified)Callers who populate a blocklist from
PRIVATE_RANGESalone would still treat0.0.0.0and::as allowed.Test plan
test/parallel/test-blocklist.jsPRIVATE_RANGES coverage for0.0.0.0,0.0.0.1, and::doc/api/net.mdThis API is unreleased (
added: REPLACEME), so this is a constants/docs completion rather than a HackerOne report.Made with Cursor