CVE-2026-45571 MEDIUM

CVE-2026-45571: go-git: Crafted repositories may modify main and submodule .git directories

Vendor Go-Git
Product go-git
Weakness CWE-22 · Path traversal
Published May 27, 2026
Last update May 27, 2026

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality None
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

What the vulnerability does

01Description

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.1 and 6.0.0-alpha.4, a path validation issue in go-git could allow crafted repository data to affect files outside the intended checkout target, including the repository's .git directory. These validations were introduced in upstream Git years ago, so the vulnerability arose from go-git drifting from those checks. This vulnerability is fixed in 5.19.1 and 6.0.0-alpha.4.

Key dates

02Disclosure timeline

May 27, 2026 CVE published
May 27, 2026 Record updated