CVE-2026-4527 PUBLISHED

Cross-Site Request Forgery (CSRF) in GitLab

Assigner: GitLab
Reserved: 20.03.2026 Published: 14.05.2026 Updated: 14.05.2026

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.10 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to create unauthorized Jira subscriptions for a targeted user's namespace via a specially crafted link due to missing CSRF protection.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS Score: 6.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	Required	Availability Impact	None

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 11.10 to 18.9.7 (excl.) affected from 18.10 to 18.10.6 (excl.) affected from 18.11 to 18.11.3 (excl.)

Solutions

Upgrade to versions 18.9.7, 18.10.6, 18.11.3 or above.

Credits

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

References

Problem Types

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