{"schemaVersion":3,"id":"CVE-2026-112915","aliases":["DEBIAN-CVE-2026-112915"],"status":"published","duplicateOf":null,"title":null,"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.","dates":{"published":"2026-10-20T14:28:41.520Z","modified":"2026-10-20T15:25:38.592Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","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","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","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","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption","description":"The product does not properly control the allocation and maintenance of a limited resource.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/400.html"}],"affected":[{"vendor":"debian","product":"python-filelock","name":"python-filelock","label":"python-filelock","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/python-filelock","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"tox-dev","product":"filelock","name":"filelock","label":"filelock","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.20.4, < 4.2.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.20.4, < 4.2.1","eol":null,"hubHref":"/vendor/tox-dev/filelock"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/tox-dev/filelock/security/advisories/GHSA-cwqr-hh33-gh44","label":"github.com/tox-dev/filelock/security/advisories/GHSA-cwqr-hh33-gh44","hostname":"github.com","tags":["X Refsource CONFIRM"]},{"url":"https://github.com/tox-dev/filelock/pull/834","label":"github.com/tox-dev/filelock/pull/834","hostname":"github.com","tags":["X Refsource MISC"]},{"url":"https://github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d","label":"github.com/tox-dev/filelock/commit/5e3f2ec0c5fb17cb2635b60b2b68bc63ab81ca2d","hostname":"github.com","tags":["X Refsource MISC"]},{"url":"https://github.com/tox-dev/filelock/releases/tag/4.2.1","label":"github.com/tox-dev/filelock/releases/tag/4.2.1","hostname":"github.com","tags":["X Refsource MISC"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-112915","label":"security-tracker.debian.org/tracker/CVE-2026-112915","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-20T14:28:41.520Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-20T15:25:38.592Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":22,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T01:33:07.679Z","stale":false,"partial":false}}