{"id":"CVE-2026-112935","revision":null,"records":[{"revision":"9ecb0a8474914609bee9d09ff965d6ba","observedAt":"2026-10-28T15:46:50.301+00:00","statement":{"source":"cve-program","id":"CVE-2026-112935","aliases":[],"title":"filelock: SoftFileLock stale-lock break removes a live lock file on a reused inode number and admits two holders","description":"filelock is a platform-independent file lock for Python. From 3.22.0 until 4.2.1, SoftFileLock can break a stale marker after an attacker frees its own marker following the stale read, an honest contender creates a live successor on the reused inode, and the successor's modification time is not newer than the saved observation, causing the live marker to be removed and two holders to be admitted. This issue is fixed in version 4.2.1.","state":0,"publishedAt":"2026-10-20T14:32:25.74+00:00","modifiedAt":"2026-10-28T14:17:06.745+00:00","affected":[{"ecosystem":"Vendor product","name":"filelock","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"tox-dev\",\n                    \"product\": \"filelock\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 3.22.0, < 4.2.1\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/tox-dev/filelock/security/advisories/GHSA-fq56-3cx3-fjxp","https://github.com/tox-dev/filelock/pull/843","https://github.com/tox-dev/filelock/commit/740ff666b62a88496c8d7394e4e6230605e4d62b","https://github.com/tox-dev/filelock/releases/tag/4.2.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112935","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112935","identifiers":["CVE-2026-112935"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-c5eb069e059248ab9c1b8cc754ce0885","complete":true,"records":13565,"lastAttemptAt":"2026-10-31T05:45:57.2866928+00:00","lastSuccessAt":"2026-10-31T03:47:38.206+00:00","error":null,"lastVerifiedAt":"2026-10-31T03:47:38.206+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13637,"expectedIdentifiers":13637,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-31T06:45:36.0139128+00:00","complete":true,"records":1094,"lastAttemptAt":"2026-10-31T06:45:36.0139128+00:00","lastSuccessAt":"2026-10-31T06:45:36.162633+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:45:36.162633+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-baa1edd11e5d417f9e457e6720b3ba8a","complete":false,"records":13577,"lastAttemptAt":"2026-10-31T06:46:01.3261846+00:00","lastSuccessAt":"2026-10-31T06:46:01.4248799+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:46:01.4248799+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-21dcd6662970dfea02e4ea60ee637115e8d92664947484d2b9276b3f6568a84f","complete":true,"records":9815,"lastAttemptAt":"2026-10-31T06:45:35.6109386+00:00","lastSuccessAt":"2026-10-30T23:47:34.1817587+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:45:35.6109386+00:00","snapshotPublishedAt":"2026-10-30T23:33:17+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-2de9ccc5290f060c7aa63f89c25dd76f655a64ba1aba7c05c97fa3bee4f09899","complete":true,"records":1967,"lastAttemptAt":"2026-10-31T06:45:35.0971204+00:00","lastSuccessAt":"2026-10-28T20:55:34.2982937+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:45:35.0971204+00:00","snapshotPublishedAt":"2026-10-28T20:03:08+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-f95f76cd406ae5bae3de632ad37fd2d5160b44f5e6b51748ac6f8f0c0c88e72b","complete":true,"records":3028,"lastAttemptAt":"2026-10-31T06:45:35.9834827+00:00","lastSuccessAt":"2026-10-30T23:47:38.4914494+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:45:35.9834827+00:00","snapshotPublishedAt":"2026-10-30T23:18:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-3ce2e3336768d0abd5b020f6f12bd5502a5deb02700e9d89d279597dce6e72ae","complete":true,"records":230992,"lastAttemptAt":"2026-10-31T06:45:35.4897459+00:00","lastSuccessAt":"2026-10-31T03:47:08.0119269+00:00","error":null,"lastVerifiedAt":"2026-10-31T06:45:35.4897459+00:00","snapshotPublishedAt":"2026-10-31T03:03:11+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}