{"id":"CVE-2026-109153","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-109153","generatedAt":"2026-10-28T01:01:33.754Z","title":"A vulnerability was detected in MosaicML Composer up to 0.32.1.","description":"A vulnerability was detected in MosaicML Composer up to 0.32.1. This affects the function tarball.extractall of the file composer/utils/checkpoint.py of the component Checkpoint Extraction. The manipulation results in path traversal. The attack can be executed remotely. The vendor was contacted early about this disclosure.","published":"2026-10-13T11:17:14.000Z","lastModified":"2026-10-16T18:17:30.000Z","status":"Deferred","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":5.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-22"],"affected":[],"epss":{"score":0.00493,"percentile":0.42036,"date":"2026-10-26","history":[{"date":"2026-10-14","score":0.00493,"percentile":0.40798}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-13T11:17:14.000Z","detail":{"score":"5.3","severity":"MEDIUM","publishedAt":"2026-10-13T11:17:14.323Z"},"summary":"New CVE, medium severity (CVSS 5.3)."}],"references":[{"url":"https://github.com/mosaicml/composer/","source":"cna@vuldb.com"},{"url":"https://github.com/mosaicml/composer/issues/3942","source":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-109153","source":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/978647","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/416887","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/416887/cti","source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-109153","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}