{"id":"CVE-2026-25934","summary":"go-git improperly verifies data integrity values for .idx and .pack files","details":"go-git is a highly extensible git implementation library written in pure Go. Prior to 5.16.5, a vulnerability was discovered in go-git whereby data integrity values for .pack and .idx files were not properly verified. This resulted in go-git potentially consuming corrupted files, which would likely result in unexpected errors such as object not found. For context, clients fetch packfiles from upstream Git servers. Those files contain a checksum of their contents, so that clients can perform integrity checks before consuming it. The pack indexes (.idx) are generated locally by go-git, or the git cli, when new .pack files are received and processed. The integrity checks for both files were not being verified correctly. This vulnerability is fixed in 5.16.5.","aliases":["GHSA-37cx-329c-33x3","GO-2026-4473"],"modified":"2026-04-17T09:14:31.985746952Z","published":"2026-02-09T22:13:41.974Z","related":["CGA-v36v-c63w-r62j","SUSE-SU-2026:0757-1","SUSE-SU-2026:1411-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25934.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-354"]},"references":[{"type":"WEB","url":"https://github.com/go-git/go-git/releases/tag/v5.16.5"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25934.json"},{"type":"ADVISORY","url":"https://github.com/go-git/go-git/security/advisories/GHSA-37cx-329c-33x3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25934"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/go-git/go-git","events":[{"introduced":"0"},{"fixed":"48a1ae05eec4fff4dd0343744a00bf8d6a7a0b4b"}]}],"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","v5.2.0","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-2026-25934.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"}]}