CVE-2026-112911

{"id": "CVE-2026-112911", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112911", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-28T15:09:37.663560Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.3, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 5.2, "exploitabilityScore": 1.0}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "tox-dev", "product": "filelock", "versions": [{"status": "affected", "version": ">= 3.30.0, < 4.2.1"}]}]}], "published": "2026-10-20T15:17:15.473", "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/839", "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-9c4x-gm8v-wgc4", "tags": ["Exploit", "Mitigation", "Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/tox-dev/filelock/security/advisories/GHSA-9c4x-gm8v-wgc4", "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-283"}]}], "descriptions": [{"lang": "en", "value": "filelock is a platform-independent file lock for Python. From 3.30.0 until 4.2.1, StrictSoftFileLock versions from 3.30.0 and SoftReadWriteLock versions from 4.0.0 can adopt a protocol directory created first by another local user in a shared parent directory, allowing that user to alter protocol state and admit concurrent holders. This issue is fixed in version 4.2.1."}], "lastModified": "2026-10-28T16:17:02.690", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "DA757867-5EB6-4CE6-874F-4B483AFE4011", "versionEndExcluding": "4.2.1", "versionStartIncluding": "3.30.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}