CVE-2026-112936
filelock: ReadWriteLock follows a symlink at the lock path into SQLite
CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-59 CWE-668 |
| Vendor | tox-dev |
| Product | filelock |
| Published | Oct 20, 2026 |
| Last Updated | Oct 20, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
Low
Affected Versions
tox-dev / filelock
>= 3.20.4, < 4.0.9