filelock is a platform-independent file lock for Python. Prior to 4.2.1, UnixFileLock can truncate a regular file renamed onto the lock path when another local user has actual rename permission, or hard-linked there under a permissive hard-link policy; when an explicit mode is requested, affected versions from 3.10.2 can also change that files mode. This issue is fixed in version 4.2.1.
Weakness
The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/159.html
- https://cwe.mitre.org/data/definitions/177.html
- https://cwe.mitre.org/data/definitions/48.html
- https://cwe.mitre.org/data/definitions/641.html