{"id":"CVE-2026-109349","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-109349","generatedAt":"2026-10-28T02:24:52.213Z","title":"A malicious remote can send a 12-byte pack header declaring version 3 to panic the client and abort the clone or fetch.","description":"gitoxide gix-pack before 0.75.0 contains a reachable assertion in BytesToEntriesIter::new_from_header: the pack header decoder accepts version 3, but a release-enabled assert_eq! requires version 2. A malicious remote can send a 12-byte pack header declaring version 3 to panic the client and abort the clone or fetch.","published":"2026-10-12T17:17:32.000Z","lastModified":"2026-10-16T17:27:25.000Z","status":"Awaiting Analysis","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":7.1,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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-617"],"affected":[],"epss":{"score":0.0027,"percentile":0.19043,"date":"2026-10-26","history":[{"date":"2026-10-13","score":0.0027,"percentile":0.17757}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.27%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-12T17:17:32.000Z","detail":{"score":"7.1","severity":"HIGH","publishedAt":"2026-10-12T17:17:31.823Z"},"summary":"New CVE, high severity (CVSS 7.1)."}],"references":[{"url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-633h-mqjc-8rwg","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/gix-pack-before-0.75.0-reachable-assertion-dos-via-pack-version-3-header","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-109349","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."}