{"id":"CVE-2026-112941","published":"2026-10-20T15:17:16.973","lastModified":"2026-10-21T17:52:25.993","description":"filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftReadWriteLock and AsyncSoftReadWriteLock cache a successful check of the <path>.rw lock tree and resolve its names again during later record operations, allowing another local user who can replace that tree after the first acquisition to redirect lock-record writes into directories writable by the lock user. This issue is fixed in version 4.2.1.","cvssScore":3.3,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cwes":["CWE-367"],"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-wfhq-q4j2-c37m","tags":["Exploit","Mitigation","Patch","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-wfhq-q4j2-c37m","tags":["Exploit","Mitigation","Patch","Vendor Advisory"]}],"hasPoc":true,"ai":null}