CVE-2026-41506

Name	CVE-2026-41506
Description	go-git is an extensible git implementation library written in pure Go. Prior to versions 5.18.0 and 6.0.0-alpha.2, go-git may leak HTTP authentication credentials when following redirects during smart-HTTP clone and fetch operations. This issue has been patched in versions 5.18.0 and 6.0.0-alpha.2.
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	1136095

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	fixed
golang-github-go-git-go-git-v6 (PTS)	forky, sid	6.0.0~alpha.4-2	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)	5.19.1-1			1136095
golang-github-go-git-go-git-v6	source	(unstable)	6.0.0~alpha4-1

Notes

[trixie] - golang-github-go-git-go-git <no-dsa> (Minor issue)
[bookworm] - golang-github-go-git-go-git <postponed> (Limited support, minor issue; credential leak on cross-host redirect)
https://github.com/go-git/go-git/security/advisories/GHSA-3xc5-wrhm-f963
Fixed by: https://github.com/go-git/go-git/commit/bcd20a9c525826081262a06a9ed9c3167abfcd53 (v5.18.0)