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CVE-2026-34165

MEDIUM CVSS 3.1: 5.0 EPSS 0.01%
Updated Apr 02, 2026
Go-Git_Project
Parameter Value
CVSS 5.0 (MEDIUM)
Affected Versions 5.0.0 — 5.17.1
Fixed In 5.17.1
Type CWE-770 (Allocation Without Limits), CWE-191 (Integer Underflow)
Vendor Go-Git_Project
Public PoC No

go-git is an extensible git implementation library written in pure Go. From version 5.0.0 to before version 5.17.1, a vulnerability has been identified in which a maliciously crafted .idx file can cause asymmetric memory consumption, potentially exhausting available memory and resulting in a denial-of-service (DoS) condition. Exploitation requires write access to the local repository's .git directory, it order to create or alter existing .idx files.

This issue has been patched in version 5.17.1.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Go-Git_Project Go-Git
cpe:2.3:a:go-git_project:go-git:*:*:*:*:*:go:*:*
5.0.0 5.17.1