{"id":"CVE-2026-33762","summary":"go-git: Missing validation decoding Index v4 files leads to panic","details":"go-git is an extensible git implementation library written in pure Go. Prior to version 5.17.1, go-git’s index decoder for format version 4 fails to validate the path name prefix length before applying it to the previously decoded path name. A maliciously crafted index file can trigger an out-of-bounds slice operation, resulting in a runtime panic during normal index parsing. This issue only affects Git index format version 4. Earlier formats (go-git supports only v2 and v3) are not vulnerable to this issue. This issue has been patched in version 5.17.1.","aliases":["GHSA-gm2x-2g9h-ccm8","GO-2026-4909"],"modified":"2026-04-10T05:42:56.288194Z","published":"2026-03-31T13:47:42.378Z","related":["CGA-9gc9-qwwq-vf3j"],"database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33762.json","cwe_ids":["CWE-129"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33762.json"},{"type":"WEB","url":"https://github.com/go-git/go-git/releases/tag/v5.17.1"},{"type":"ADVISORY","url":"https://github.com/go-git/go-git/security/advisories/GHSA-gm2x-2g9h-ccm8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33762"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-git/go-git","events":[{"introduced":"0"},{"fixed":"5e23dfd02db92644dc4a3358ceb297fce875b772"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"5.17.1"}]}}],"versions":["v1.0.0","v2.0.0","v2.1.0","v2.1.1","v2.1.2","v2.1.3","v2.2.0","v3.0.0","v3.0.1","v3.0.2","v3.0.3","v3.0.4","v3.1.0","v3.1.1","v4.0.0","v4.0.0-rc1","v4.0.0-rc10","v4.0.0-rc11","v4.0.0-rc12","v4.0.0-rc13","v4.0.0-rc14","v4.0.0-rc15","v4.0.0-rc2","v4.0.0-rc3","v4.0.0-rc4","v4.0.0-rc5","v4.0.0-rc6","v4.0.0-rc7","v4.0.0-rc8","v4.0.0-rc9","v4.1.0","v4.1.1","v4.10.0","v4.11.0","v4.12.0","v4.13.0","v4.13.1","v4.2.0","v4.2.1","v4.3.0","v4.3.1","v4.4.0","v4.4.1","v4.5.0","v4.6.0","v4.7.0","v4.7.1","v4.8.0","v4.8.1","v4.9.0","v4.9.1","v5.0.0","v5.1.0","v5.10.0","v5.10.1","v5.11.0","v5.12.0","v5.13.0","v5.13.1","v5.13.2","v5.14.0","v5.15.0","v5.16.0","v5.16.1","v5.16.2","v5.16.3","v5.16.4","v5.16.5","v5.17.0","v5.2.0","v5.3.0","v5.4.0","v5.4.1","v5.4.2","v5.5.0","v5.5.1","v5.5.2","v5.6.0","v5.6.1","v5.7.0","v5.8.0","v5.8.1","v5.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33762.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"}]}