CVE-2026-3857

HIGH 8.1

Cross-Site Request Forgery (CSRF) in GitLab

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

1th

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.10 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an unauthenticated user to execute arbitrary GraphQL mutations on behalf of authenticated users due to insufficient CSRF protection.

CWE	CWE-352
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Mar 25, 2026
Last Updated	Mar 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

GitLab / GitLab

17.10 < 18.8.7 18.9 < 18.9.3 18.10 < 18.10.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/592828 hackerone.com: https://hackerone.com/reports/3584382 about.gitlab.com: https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/

Credits

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