CVE-2026-45022

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.0 and 6.0.0-alpha.3, go-git may parse malformed Git objects in a way that differs from upstream Git. When commit or tag objects contain ambiguous or malformed headers, go-git’s decoded representation may expose values differently from how Git itself would interpret or reject the same object. Additionally, go-git’s commit signing and verification logic operates over commit data reconstructed from go-git’s parsed representation rather than the original raw object bytes. As a result, go-git may sign or verify a commit payload that is not byte-for-byte equivalent to the object stored in the repository. This can cause a signature to appear valid for a commit whose displayed or effective metadata differs from the object that was intended to be signed. This vulnerability is fixed in 5.19.0 and 6.0.0-alpha.3.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha1:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha2:*:*:*:go:*:*

History

04 Jun 2026, 17:57

Type Values Removed Values Added
CPE cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha1:*:*:*:go:*:*
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha2:*:*:*:go:*:*
First Time Go-git Project
Go-git Project go-git
References () https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp - () https://github.com/go-git/go-git/security/advisories/GHSA-389r-gv7p-r3rp - Vendor Advisory
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5

27 May 2026, 15:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-27 15:16

Updated : 2026-06-04 17:57


NVD link : CVE-2026-45022

Mitre link : CVE-2026-45022

CVE.ORG link : CVE-2026-45022


JSON object : View

Products Affected

go-git_project

  • go-git
CWE
CWE-180

Incorrect Behavior Order: Validate Before Canonicalize

CWE-345

Insufficient Verification of Data Authenticity