filelock ReadWriteLock: SQLite reopens the lock database by name, so a planted symlink or journal file makes the lock...

Date Oct 23, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product PyPI ยท filelock
CVE CVE-2026-112940
High-risk advisory CVE-2026-112940

Summary

filelock ReadWriteLock: SQLite reopens the lock database by name, so a planted symlink or journal file makes the lock user's process overwrite or unlink its own files

Why it matters

GitHub has published a reviewed security advisory for filelock. Prioritize it with other application dependency updates, especially because EPSS places it in the 2% percentile.

Operator check

Check whether filelock is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.1%; percentile: 2%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.