AntFleet

Disagreement · f411be15-anthropic-0

Webhook signature verification ordering allows information leakage on missing secret

solo Opus
repo e24ef98c·PR #11·reviewed 1 week ago

Opus finding

Webhook signature verification ordering allows information leakage on missing secret

lowsecuritymedium
  • apps/web/app/api/github/webhook/route.ts:159-165
The POST handler reads the raw body before verifying the signature only after checking secret presence. This is fine, but combined with logging of `delivery` headers from unverified requests on subsequent code paths could leak metadata; minor.

Recommendation

Consider returning early before reading body when secret missing (already done) — acceptable as-is.

Other reviewer

The other reviewer flagged nothing in this file/line range.

Why this didn't post

This finding didn't meet AntFleet's unanimous agreement threshold. Both frontier models review every PR independently; only findings they both flag with the same severity and category are posted to the PR. This one fell through.

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