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CVE-2026-45571

25
FAUCET Score

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.

First published: May 27, 2026Last modified: May 27, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 5.19.1CPE matchmatch criteria
cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha1:*:*:*:go:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha2:*:*:*:go:*:*
6.0.0CPE matchmatch criteria
cpe:2.3:a:go-git_project:go-git:6.0.0:alpha3:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
21.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 22nd percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

gopatch availablevia ghsa
Product: github.com/go-git/go-git/v5Fixed in: 5.19.1
gopatch availablevia ghsa
Product: github.com/go-git/go-git/v6Fixed in: 6.0.0-alpha.4
microsoftpatch availablevia msrc
Product: azl3 packer 1.9.5-16 on Azure Linux 3.0Fixed in: 1.9.5-17
microsoftpatch availablevia msrc
Product: 21482-17084Fixed in: 1.9.5-17
github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

goGHSA-crhj-59gh-8x96medium

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

May 19, 2026
microsoft2026-May/CVE-2026-45571Moderate

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

May 12, 2026

References

github.com / go-git/go-git/security/advisories/GHSA-crhj-59gh-8x96
Vendor Advisory