sh _uid does not drop supplementary groups (incomplete privilege drop)
High-risk advisory
CVE-2026-54552
Summary
sh _uid does not drop supplementary groups (incomplete privilege drop)
Why it matters
GitHub has published a reviewed security advisory for sh. Prioritize it with other application dependency updates.
Operator check
Check whether sh 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.