{"identifier":"CVE-2026-112915","cve":{"id":"CVE-2026-112915","description":"filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock can open a crafted SQLite lock database without bounding schema and query work, allowing another local user who can replace the database to make acquisition stall or hang; versions from 3.20.4 expose this on initial per-instance opening, and versions from 3.30.0 repeat the exposure on every acquisition. This issue is fixed in version 4.2.1.","published":"2026-10-20T15:17:15.953000+00:00","modified":"2026-10-21T21:15:34.300000+00:00","status":"Analyzed","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvss_version":"3.1","affected":[{"criteria":"cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*","versionStartIncluding":"3.20.4","versionStartExcluding":"","versionEndIncluding":"","versionEndExcluding":"4.2.1"}],"weaknesses":["CWE-400"],"references":[{"url":"https://github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/tox-dev/filelock/pull/834","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/tox-dev/filelock/releases/tag/4.2.1","source":"security-advisories@github.com","tags":["Release Notes"]},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-cwqr-hh33-gh44","source":"security-advisories@github.com","tags":["Exploit","Mitigation","Patch","Vendor Advisory"]},{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-cwqr-hh33-gh44","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Mitigation","Patch","Vendor Advisory"]}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-20T15:25:17.769823Z","id":"CVE-2026-112915","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:tox-dev:filelock:*:*:*:*:*:python:*:*","versionStartIncluding":"3.20.4","versionEndExcluding":"4.2.1","matchCriteriaId":"F5BD9CEB-E809-4F5B-9563-4552CDED5BBD"}]}]}],"source":"nvd","retrieved_at":"2026-10-28T10:24:03.240158+00:00","exploited":false,"kev_stale":false,"products":["tox-dev / filelock"],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.00218,"percentile":0.12241,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"github.com","source_url":"https://github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d","investigate_url":"https://investigate.aeglixmind.com/#github.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-112915","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-112915","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-112915","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}