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HarperFast / symphony Public

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Harden JA3/JA4 fingerprinting: fragmented-hello bypass, blocklist validation, GREASE sig-algs, hot-path allocs#28

Merged

kriszyp merged 4 commits into

mainHarperFast/symphony:mainfrom

kris/ja4-fingerprint-hardeningHarperFast/symphony:kris/ja4-fingerprint-hardeningCopy head branch name to clipboard

Jul 23, 2026

Conversation Commits4 (4)Checks Files changed

Merged

Harden JA3/JA4 fingerprinting: fragmented-hello bypass, blocklist validation, GREASE sig-algs, hot-path allocs#28
kriszyp merged 4 commits into
mainfrom
kris/ja4-fingerprint-hardening

Commits

Commits on Jul 23, 2026

Harden JA3/JA4 fingerprinting (address @hdbjeff review on #20)

kriszyp
and
claude
committed
Fix fragmentation bypass, pre-peek DoS, and JA4 validation gaps (address @hdbjeff review on #28)

kriszyp
and
claude
committed
Fix clippy::all lint errors on PR #28

kriszyp
and
claude
committed
Fix ja3_block_hot_swap test for post-merge fail-closed semantics

kriszyp
and
claude
committed

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