{"id":"CVE-2026-109348","title":"Gitoxide gix-mailmap before 0.35.0 contains a denial of service vulnerability that allows attackers to exhaust CPU through quadratic-time parsing in Snapshot::from_bytes","summary":"Gitoxide gix-mailmap before 0.35.0 contains a denial of service vulnerability that allows attackers to exhaust CPU through quadratic-time parsing in Snapshot::from_bytes. Attackers can commit a crafted .mailmap with descending-ordered en…","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cwe":["CWE-407"],"vendor":"GitoxideLabs","product":"gix-mailmap","affected":["gix-mailmap < 0.35.0"],"published":"2026-10-12","updated":"2026-10-16","sourceUpdated":"2026-10-16T17:27:24.847","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109348","references":[{"url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmpw-wwcm-r8rc","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/gitoxide-gix-mailmap-before-0.35.0-cpu-denial-of-service-via-mailmap-parsing","label":"disclosure@vulncheck.com"},{"url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-pmpw-wwcm-r8rc","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00296,"epssPercentile":0.22153,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-13T16:14:32.633512Z"},"ingestedAt":"2026-10-12T18:00:08.210Z","slug":"CVE-2026-109348","body":"## Overview\n\nGitoxide gix-mailmap before 0.35.0 contains a denial of service vulnerability that allows attackers to exhaust CPU through quadratic-time parsing in Snapshot::from_bytes. Attackers can commit a crafted .mailmap with descending-ordered entries forcing repeated front inserts, blocking workers running log, blame, or shortlog for minutes.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":36,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":220983,"id":"CVE-2026-109348","ts":1792026956170,"field":"exploit_available","old":"false","new":"true"}]}