CVE-2026-112940

{"id": "CVE-2026-112940", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112940", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-22T21:29:06.989000Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "tox-dev", "product": "filelock", "versions": [{"status": "affected", "version": ">= 3.20.4, < 4.2.1"}]}]}], "published": "2026-10-20T15:17:16.827", "references": [{"url": "https://github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/tox-dev/filelock/pull/834", "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-v4x8-3wr5-3wq8", "tags": ["Exploit", "Mitigation", "Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/tox-dev/filelock/security/advisories/GHSA-v4x8-3wr5-3wq8", "tags": ["Exploit", "Mitigation", "Patch", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-363"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-59"}]}], "descriptions": [{"lang": "en", "value": "filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock let SQLite reopen the database and side files by name; on POSIX systems an attacker with rename access in a non-sticky parent can swap those names to cause overwrite or unlink operations, while a writable adjacent hot journal is additionally required for attacker-chosen content overwrites. This issue is fixed in version 4.2.1."}], "lastModified": "2026-10-22T22:18:02.827", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "F5BD9CEB-E809-4F5B-9563-4552CDED5BBD", "versionEndExcluding": "4.2.1", "versionStartIncluding": "3.20.4"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}