Insufficient CSRF Protection in GitLab CE/EE Allows Unauthorized GraphQL Access
CVE-2026-4922

8.1HIGH

Key Information:

Vendor

Gitlab
Status
Gitlab
Vendor
CVE Published:
22 April 2026

What is CVE-2026-4922?

GitLab has addressed a security issue in GitLab CE/EE where an unauthenticated user could exploit insufficient CSRF protection to perform GraphQL mutations on behalf of authenticated users. This vulnerability could potentially compromise user data and lead to unauthorized actions within the application, affecting the integrity and confidentiality of the system.

Affected Version(s)

GitLab 17.0 < 18.9.6

GitLab 18.10 < 18.10.4

GitLab 18.11 < 18.11.1

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/594937
https://hackerone.com/reports/3627285
technical-descriptionexploitpermissions-required
https://about.gitlab.com/releases/2026/04/22/patch-releas...

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

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