CVE-2026-71556

Name	CVE-2026-71556
Description	go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.
Source	CVE (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 Bugs	1143903, 1143904

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
golang-github-go-git-go-git (PTS)	bookworm	5.4.2-3	vulnerable
	trixie	5.14.0-1	vulnerable
	forky, sid	5.19.1-1	vulnerable
golang-github-go-git-go-git-v6 (PTS)	forky, sid	6.0.0~alpha.5-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
golang-github-go-git-go-git	source	(unstable)	(unfixed)			1143903
golang-github-go-git-go-git-v6	source	(unstable)	6.0.0~alpha.5-1			1143904

Notes

[trixie] - golang-github-go-git-go-git <no-dsa> (Minor issue)
https://github.com/go-git/go-git/security/advisories/GHSA-hc8v-wwc9-vgxm
Fixed by: https://github.com/go-git/go-git/commit/661d1c7f101d34e002a3cfcf8dbea5b7421d07ac (v6.0.0-alpha.5)
Fixed by: https://github.com/go-git/go-git/commit/008a78f2dd86f52544ddff8b8e8ddeecdf3f7aab (v5.19.2)