{"id":"UBUNTU-CVE-2026-71557","details":"go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.","modified":"2026-08-13T00:14:08Z","published":"2026-08-07T17:17:00Z","upstream":["CVE-2026-71557"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-71557"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-71557"},{"type":"REPORT","url":"https://github.com/go-git/go-git/commit/4a0e66d555de5f9a30c31e2df64f445f42bd01e7"},{"type":"REPORT","url":"https://github.com/go-git/go-git/commit/da9f7d8a0e98b475600177348d6ece384a370f36"},{"type":"REPORT","url":"https://github.com/go-git/go-git/pull/2247"},{"type":"REPORT","url":"https://github.com/go-git/go-git/pull/2254"},{"type":"REPORT","url":"https://github.com/go-git/go-git/releases/tag/v5.19.2"},{"type":"REPORT","url":"https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.5"},{"type":"REPORT","url":"https://github.com/go-git/go-git/security/advisories/GHSA-qgq7-7hm3-q39j"}],"affected":[{"package":{"name":"golang-github-go-git-go-git","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2-3","5.4.2-3ubuntu0.1~esm1","5.4.2-3ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"go-git","binary_version":"5.4.2-3ubuntu0.1~esm2"},{"binary_version":"5.4.2-3ubuntu0.1~esm2","binary_name":"golang-github-go-git-go-git-dev"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71557.json"}},{"package":{"name":"golang-github-go-git-go-git","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2-3build1","5.4.2-4","5.4.2-4ubuntu0.24.04.1","5.4.2-4ubuntu0.24.04.2","5.4.2-4ubuntu0.24.04.2+esm1","5.4.2-4ubuntu0.24.04.3","5.4.2-4ubuntu0.24.04.3+esm1","5.4.2-4ubuntu0.24.04.3+esm2","5.4.2-4ubuntu0.24.04.3+esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.2-4ubuntu0.24.04.3+esm3","binary_name":"go-git"},{"binary_name":"golang-github-go-git-go-git-dev","binary_version":"5.4.2-4ubuntu0.24.04.3+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71557.json"}},{"package":{"name":"golang-github-go-git-go-git","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/golang-github-go-git-go-git?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.14.0-1","5.16.2-1","5.16.2-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"go-git","binary_version":"5.16.2-1ubuntu0.1~esm1"},{"binary_name":"golang-github-go-git-go-git-dev","binary_version":"5.16.2-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71557.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L"},{"type":"Ubuntu","score":"medium"}]}