CVE-2025-5101

Public Exploit
Improper Control of Generation of Code ('Code Injection') in GitLab

Description

An issue has been discovered in GitLab CE/EE affecting all versions before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that under certain conditions could have allowed an authenticated attacker to distribute malicious code that appears harmless in the web interface by taking advantage of ambiguity between branches and tags during repository imports.

Remediation

Solution:

  • Upgrade to versions 18.1.5, 18.2.5, 18.3.1 or above.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/545165 issue tracking permissions required
https://hackerone.com/reports/3124199 exploit technical description permissions required

Frequently Asked Questions

What is the severity of CVE-2025-5101?
CVE-2025-5101 has been scored as a medium severity vulnerability.
How to fix CVE-2025-5101?
To fix CVE-2025-5101: Upgrade to versions 18.1.5, 18.2.5, 18.3.1 or above.
Is CVE-2025-5101 being actively exploited in the wild?
It is possible that CVE-2025-5101 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-5101?
CVE-2025-5101 affects GitLab GitLab.
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