Authentication Spoofing Vulnerability in GitLab CE/EE by GitLab
CVE-2026-92530

4.3MEDIUM

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
23 September 2026

What is CVE-2026-92530?

A vulnerability has been identified in GitLab CE/EE that allows an authenticated user to potentially spoof the authorship of merge requests. This issue arises from an improper dependency on ephemeral cache states during the Direct Transfer import process. As a result, it becomes possible for the malicious actor to attribute content to users who exist within the target GitLab instance, leading to potential misuse of the merge request functionality. This vulnerability impacts multiple versions prior to specific patched releases, making it essential for users to upgrade promptly.

Affected Version(s)

GitLab 19.1 < 19.2.7

GitLab 19.3 < 19.3.3

GitLab 19.4 < 19.4.1

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/628379
https://docs.gitlab.com/releases/patches/patch-release-gi...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Thanks [ahacker1](https://hackerone.com/ahacker1) for reporting this vulnerability through our HackerOne bug bounty program
.