CVE-2026-71557

NameCVE-2026-71557
Descriptiongo-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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1143903, 1143904

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
golang-github-go-git-go-git (PTS)bookworm5.4.2-3vulnerable
trixie5.14.0-1vulnerable
forky, sid5.19.1-1vulnerable
golang-github-go-git-go-git-v6 (PTS)forky, sid6.0.0~alpha.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
golang-github-go-git-go-gitsource(unstable)(unfixed)1143903
golang-github-go-git-go-git-v6source(unstable)6.0.0~alpha.5-11143904

Notes

[trixie] - golang-github-go-git-go-git <no-dsa> (Minor issue)
https://github.com/go-git/go-git/security/advisories/GHSA-qgq7-7hm3-q39j
https://github.com/go-git/go-git/pull/2247
Fixed by (merge): https://github.com/go-git/go-git/commit/da9f7d8a0e98b475600177348d6ece384a370f36 (v6.0.0-alpha.5)
https://github.com/go-git/go-git/pull/2254
Fixed by (merge): https://github.com/go-git/go-git/commit/4a0e66d555de5f9a30c31e2df64f445f42bd01e7 (v5.19.2)

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