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CVE-2026-112936

6.1 medium SSVC exploitation: poc Analyzed
NVD · CVE.org

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.0.9, ReadWriteLock and AsyncReadWriteLock versions from 3.20.4 resolve the lock path and pass it to SQLite without rejecting a final symbolic link, allowing another local user who can create names in the lock directory to redirect database creation and locking or split mutual exclusion between targets. This issue is fixed in version 4.0.9.

Fix

Patch, vendor advisory and mitigation references on NVD 3

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 8

  1. Cpes+1 CPE criteria (now 1)NVD modified 2026-10-21 18:09
  2. StatusPublished → AnalyzedNVD modified 2026-10-21 18:09
  3. StatusUndergoing Analysis → PublishedNVD modified 2026-10-20 16:47
  4. StatusPublished → Undergoing AnalysisNVD modified 2026-10-20 19:50
  5. StatusReceived → PublishedNVD modified 2026-10-20 16:47
  6. StatusPublished → ReceivedNVD modified 2026-10-20 17:17
  7. StatusReceived → PublishedNVD modified 2026-10-20 14:34
  8. First seenCVSS 6.1NVD modified 2026-10-20 15:17

Affected (CPE criteria) 1

  • cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*

References 4