{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-112914", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-19T20:16:09.858Z", "datePublished": "2026-10-20T14:26:18.813Z", "dateUpdated": "2026-10-20T14:26:18.813Z"}, "containers": {"cna": {"title": "filelock: SoftFileLock stale-break restore follows a swapped-in symbolic link and hard-links a file of the user running the lock into the lock directory", "problemTypes": [{"descriptions": [{"cweId": "CWE-363", "lang": "en", "description": "CWE-363: Race Condition Enabling Link Following", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/tox-dev/filelock/security/advisories/GHSA-crv4-6mhj-j5jh", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tox-dev/filelock/security/advisories/GHSA-crv4-6mhj-j5jh"}, {"name": "https://github.com/tox-dev/filelock/pull/843", "tags": ["x_refsource_MISC"], "url": "https://github.com/tox-dev/filelock/pull/843"}, {"name": "https://github.com/tox-dev/filelock/commit/740ff666b62a88496c8d7394e4e6230605e4d62b", "tags": ["x_refsource_MISC"], "url": "https://github.com/tox-dev/filelock/commit/740ff666b62a88496c8d7394e4e6230605e4d62b"}, {"name": "https://github.com/tox-dev/filelock/releases/tag/4.2.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/tox-dev/filelock/releases/tag/4.2.1"}], "affected": [{"vendor": "tox-dev", "product": "filelock", "versions": [{"version": ">= 4.1.0, < 4.2.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-20T14:26:18.813Z"}, "descriptions": [{"lang": "en", "value": "filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock can restore a stale marker by name after moving it aside, allowing another local user with rename access in a non-sticky lock directory to swap in a symbolic link and, on a runtime that follows the link and a same-filesystem target, make the lock user hard-link one of its files into the lock directory. This issue is fixed in version 4.2.1."}], "source": {"advisory": "GHSA-crv4-6mhj-j5jh", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "filelock", "vendor": "tox-dev", "versions": [{"status": "affected", "version": ">= 4.1.0, < 4.2.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock can restore a stale marker by name after moving it aside, allowing another local user with rename access in a non-sticky lock directory to swap in a symbolic link and, on a runtime that follows the link and a same-filesystem target, make the lock user hard-link one of its files into the lock directory. This issue is fixed in version 4.2.1."}], "id": "CVE-2026-112914", "lastModified": "2026-10-20T15:17:15.810", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-20T15:17:15.810", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tox-dev/filelock/commit/740ff666b62a88496c8d7394e4e6230605e4d62b"}, {"source": "security-advisories@github.com", "url": "https://github.com/tox-dev/filelock/pull/843"}, {"source": "security-advisories@github.com", "url": "https://github.com/tox-dev/filelock/releases/tag/4.2.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/tox-dev/filelock/security/advisories/GHSA-crv4-6mhj-j5jh"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-363"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.1.0,4.2.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "filelock", "source": "cna", "vendor": "tox-dev"}, "product": "filelock", "vendor": "tox-dev"}], "created": "2026-10-20T16:30:06.625741+00:00", "updated": "2026-10-20T16:30:06.625798+00:00", "vendors": ["tox-dev", "tox-dev$PRODUCT$filelock"]}