Allocation of Resources Without Limits or Throttling Affecting filelock package, versions [3.20.4,4.2.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-FILELOCK-21280750
- published20 Oct 2026
- disclosed20 Oct 2026
- creditUnknown
Introduced: 20 Oct 2026
NewCVE-2026-112915 (opens in a new tab)How to fix?
Upgrade filelock to version 4.2.1 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the SQLite-backed read-write lock implementation in src/filelock/_read_write.py, where an untrusted actor who controls the database file path can supply a malformed or adversarial SQLite database, causing the lock mechanism to crash and deny availability to processes depending on the lock.