{"id":"CVE-2026-112937","revision":"3851807c0b78486090ad6f8ce321b4de","records":[{"revision":"3851807c0b78486090ad6f8ce321b4de","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-112937","aliases":[],"title":"filelock: ReadWriteLock on the hard-link route deletes any directory another user renames onto its .filelock-* link directory name","description":"filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, ReadWriteLock can remove a randomized .filelock-* private-hard-link directory during cleanup, allowing another local user with rename access in a non-sticky parent to observe a live name or forge a dead-owner sweep name and rename a sibling directory onto it for deletion. This issue is fixed in version 4.2.1.","state":0,"publishedAt":"2026-10-20T14:36:28.129+00:00","modifiedAt":"2026-10-21T15:55:14.113+00:00","affected":[{"ecosystem":"Vendor product","name":"filelock","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tox-dev\",\n                    \"product\": \"filelock\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.1.0, < 4.2.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","score":6.1,"severity":"MEDIUM"}],"references":["https://github.com/tox-dev/filelock/security/advisories/GHSA-jqc4-5cvw-7w85","https://github.com/tox-dev/filelock/pull/834","https://github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d","https://github.com/tox-dev/filelock/releases/tag/4.2.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112937","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112937","identifiers":["CVE-2026-112937"]},"retained":false,"historicalAffected":[]}],"coverage":[]}