#VU103421 Improper neutralization of argument delimiters in a command in go-git - CVE-2025-21613

Vulnerability identifier: #VU103421

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21613

CWE-ID: CWE-88

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
go-git
Universal components / Libraries / Programming Languages & Components

Vendor: go-git

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper input validation when handling URL field in arguments passed to the git-upload-pack command. A remote attacker can trick the victim into passing a specially crafted URL as a flag to the affected command and manipulate arguments for the git-upload-pack command, which can result in information disclosure.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

go-git: 4.0.0 - 5.12.0

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External links
https://github.com/go-git/go-git/security/advisories/GHSA-v725-9546-7q7m

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.