CVE-2026-112909 | BDVDB-2026-393142 Detail

Description#

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 file's mode. This issue is fixed in version 4.2.1.

Impact#

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Exploit#

History#

1. Version 12026-10-20Record published in the CVE List.
2. Version 22026-10-22Most recent update recorded in the CVE List.