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Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.0 before 18.9.6, 18.10 before 18.10.4, and 18.11 before 18.11.1 that could have allowed an unauthenticated user to execute GraphQL mutations on behalf of authenticated users due to insufficient CSRF protection.

PUBLISHED Reserved 2026-03-26 | Published 2026-04-22 | Updated 2026-04-24 | Assigner GitLab




HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Problem types

CWE-352: Cross-Site Request Forgery (CSRF)

Product status

Default status
unaffected

17.0 (semver) before 18.9.6
affected

18.10 (semver) before 18.10.4
affected

18.11 (semver) before 18.11.1
affected

Credits

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

References

gitlab.com/gitlab-org/gitlab/-/work_items/594937

hackerone.com/reports/3627285 (HackerOne Bug Bounty Report #3627285) technical-description exploit permissions-required

about.gitlab.com/...2/patch-release-gitlab-18-11-1-released/

cve.org (CVE-2026-4922)

nvd.nist.gov (CVE-2026-4922)

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