{"id":"CVE-2026-112941","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-112941","generatedAt":"2026-10-28T08:11:02.988Z","title":"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…","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.","published":"2026-10-20T15:17:17.000Z","lastModified":"2026-10-21T17:52:26.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":3.3,"severity":"LOW","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"cwe":["CWE-367"],"affected":["tox-dev/filelock"],"epss":{"score":0.00131,"percentile":0.02695,"date":"2026-10-27","history":[{"date":"2026-10-21","score":0.00086,"percentile":0.00295}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-20T15:17:17.000Z","detail":{"score":"3.3","severity":"LOW","publishedAt":"2026-10-20T15:17:16.973Z"},"summary":"New CVE, low severity (CVSS 3.3)."}],"references":[{"url":"https://github.com/tox-dev/filelock/commit/bfa066d65a1ba9106f86ee9d027f7588b9c77e03","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/tox-dev/filelock/pull/842","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/tox-dev/filelock/releases/tag/4.2.1","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-wfhq-q4j2-c37m","tags":["Exploit","Mitigation","Patch","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-112941","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}