{"id":"CVE-2026-112934","published":"2026-10-20T15:17:16.100","lastModified":"2026-10-22T22:18:02.680","description":"filelock is a platform-independent file lock for Python. From 4.0.0 until 4.2.1, SoftReadWriteLock refreshes holder records by name, allowing another local user with rename access to the lock directory to replace a record with a named pipe and stall the lock, or under a permissive hard-link policy to link a reachable target file and cause the lock user to write through it. This issue is fixed in version 4.2.1.","cvssScore":6.1,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H","cwes":["CWE-62"],"vendors":["tox-dev"],"products":["filelock"],"references":[{"url":"https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c77e03","tags":["Patch"]},{"url":"https://github.com/tox-dev/filelock/pull/842","tags":["Patch"]},{"url":"https://github.com/tox-dev/filelock/releases/tag/4.2.1","tags":["Release Notes"]},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-fj95-fr6c-h845","tags":["Exploit","Mitigation","Vendor Advisory"]},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-fj95-fr6c-h845","tags":["Exploit","Mitigation","Vendor Advisory"]}],"exploitRefs":[{"url":"https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c77e03","tags":["Patch"]},{"url":"https://github.com/tox-dev/filelock/pull/842","tags":["Patch"]},{"url":"https://github.com/tox-dev/filelock/releases/tag/4.2.1","tags":["Release Notes"]},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-fj95-fr6c-h845","tags":["Exploit","Mitigation","Vendor Advisory"]},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-fj95-fr6c-h845","tags":["Exploit","Mitigation","Vendor Advisory"]}],"hasPoc":true,"ai":null}