AnyIO run_process/open_process ignores extra_groups and can retain parent supplementary groups
High-risk advisory
CVE-2026-63349
Summary
AnyIO run_process/open_process ignores extra_groups and can retain parent supplementary groups
Why it matters
GitHub has published a reviewed security advisory for anyio. Prioritize it with other application dependency updates.
Operator check
Check whether anyio is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.0.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.