filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock can open a crafted SQLite lock database without bounding schema and query work, allowing another local user who can replace the database to make acquisition stall or hang; versions from 3.20.4 expose this on initial per-instance opening, and versions from 3.30.0 repeat the exposure on every acquisition. This issue is fixed in version 4.2.1.
Metrics
Affected Vendors & Products
References
History
Wed, 21 Oct 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:* |
Wed, 21 Oct 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
threat_severity
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threat_severity
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Tue, 20 Oct 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Tox-dev
Tox-dev filelock |
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| Vendors & Products |
Tox-dev
Tox-dev filelock |
Tue, 20 Oct 2026 16:30:00 +0000
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| Metrics |
ssvc
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Tue, 20 Oct 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock can open a crafted SQLite lock database without bounding schema and query work, allowing another local user who can replace the database to make acquisition stall or hang; versions from 3.20.4 expose this on initial per-instance opening, and versions from 3.30.0 repeat the exposure on every acquisition. This issue is fixed in version 4.2.1. | |
| Title | filelock ReadWriteLock: a crafted lock database makes every acquire stall or hang regardless of timeout | |
| Weaknesses | CWE-400 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-20T14:28:41.520Z
Updated: 2026-10-20T15:25:38.592Z
Reserved: 2026-10-19T20:16:09.858Z
Link: CVE-2026-112915
Updated: 2026-10-20T15:25:33.982Z
Status : Analyzed
Published: 2026-10-20T15:17:15.953
Modified: 2026-10-21T21:15:34.300
Link: CVE-2026-112915