CVE-2026-41506: go-git is an extensible git implementation library written in pure Go

Q: How do I fix CVE-2026-41506?

go-git: upgrade to 5.18.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-41506 being exploited?

CVE-2026-41506 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41506 affect?

CVE-2026-41506 affects go-git. Severity is medium (CVSS 4.7). 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 i

Q: How urgent is CVE-2026-41506?

Priority 21/100. No elevated risk signals yet.

Routine

MEDIUM 4.7UPGRADE

CVE-2026-41506 is a medium-severity flaw (CVSS 4.7) affecting go-git. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-522
Published	2026-05-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: go-git project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-08 14:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

go-git project go-git UPGRADE

Affected: < 5.18.0 · 6.0.0 alpha1

Fixed in: 5.18.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy go-git || rpm -q go-git || go-git --version

2. UPGRADE to 5.18.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade go-git

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade go-git

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41506?

go-git: upgrade to 5.18.0. Exact commands for each OS are on this page.

Is CVE-2026-41506 being exploited?

CVE-2026-41506 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41506 affect?

CVE-2026-41506 affects go-git. Severity is medium (CVSS 4.7). 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 i

How urgent is CVE-2026-41506?

Priority 21/100. No elevated risk signals yet.

Software pages

Git vulnerabilities

Related CVEs

CVE-2026-45571 MEDIUM 5.4 UPGRADE go-git is an extensible git implementation library written in pure Go
CVE-2026-45570 CRITICAL 9.6 UPGRADE go-git is an extensible git implementation library written in pure Go
CVE-2026-45022 HIGH 7.5 UPGRADE go-git is an extensible git implementation library written in pure Go

References

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