CVE-2026-34165
github.com/go-git/go-git/v5: go-git: Denial of Service via crafted .idx file
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · March 31, 2026
Updated · June 30, 2026
Description
A flaw was found in go-git, an extensible Git implementation library. A local attacker with write access to a local repository's .git directory could create or alter a maliciously crafted .idx file. This could lead to asymmetric memory consumption, potentially exhausting available memory and causing a denial-of-service (DoS) condition.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 5CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
CWE-770 · Allocation of Resources Without Limits or Throttling