go-git up to 5.17.x/6.0.0-alpha.1 insufficiently protected credentials

Summaryinfo

A vulnerability marked as problematic has been reported in go-git up to 5.17.x/6.0.0-alpha.1. The impacted element is an unknown function. This manipulation causes insufficiently protected credentials. The identification of this vulnerability is CVE-2026-41506. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in go-git up to 5.17.x/6.0.0-alpha.1. It has been declared as problematic. Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. The CWE definition for the vulnerability is CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-41506 since 04/20/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1552 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 313456 (Linux Distros Unpatched Vulnerability : CVE-2026-41506), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.18.0 or 6.0.0-alpha.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the databases at Tenable (313456) and EUVD (EUVD-2026-28596). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Versioning Software

Name

• go-git

Version

• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10
• 5.11
• 5.12
• 5.13
• 5.14
• 5.15
• 5.16
• 5.17
• 6.0.0-alpha.0
• 6.0.0-alpha.1

Website

• Product: https://github.com/go-git/go-git/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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