YesWiki Vulnerable to Unauthenticated ActivityPub Signature-Verification Bypass via `!openssl_verify(...)` accepting ...
High-risk advisory
CVE-2026-52767
Summary
YesWiki Vulnerable to Unauthenticated ActivityPub Signature-Verification Bypass via `!openssl_verify(...)` accepting `int(-1)`
Why it matters
GitHub has published a reviewed security advisory for yeswiki/yeswiki. Prioritize it with other application dependency updates.
Operator check
Check whether yeswiki/yeswiki is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.