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.

CVSS v3.1 Score

4.7

MEDIUM

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

EPSS — Exploit Prediction

0.0006

Probability of exploitation

0.18%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-522 CWE-522

Affected Products

Vendor	Product	Versions
go-git_project	go-git	< 5.18.0
go-git_project	go-git	All

References

Advisories & Patches

https://github.com/go-git/go-git/security/advisories/GHSA-3xc5-wrhm-f963

Other References

https://github.com/go-git/go-git/releases/tag/v5.18.0 https://github.com/go-git/go-git/releases/tag/v6.0.0-alpha.2

Frequently Asked Questions

What is CVE-2026-41506? +

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. It has a CVSS v3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2026-41506? +

CVE-2026-41506 has a CVSS v3.1 score of 4.7 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0006, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41506? +

CVE-2026-41506 affects products from go-git_project, specifically: go-git. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41506? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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