CVE-2026-19650 PUBLISHED

Cross-Site Request Forgery (CSRF) in GitLab

Assigner: GitLab
Reserved: 12.08.2026 Published: 17.08.2026 Updated: 17.08.2026

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 19.0.8, 19.1 before 19.1.6, and 19.2 before 19.2.4 that under certain conditions could have allowed an unauthenticated user to execute mutations via GET requests due to improper request validation in GraphQL multiplex query handling.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L
CVSS Score: 7.1

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

CVSS 3.1

Product Status

Vendor	GitLab
Product	GitLab
Versions	Default: unaffected affected from 18.2 to 18.11.11 (excl.) affected from 19.0 to 19.0.8 (excl.) affected from 19.1 to 19.1.6 (excl.) affected from 19.2 to 19.2.4 (excl.)

Solutions

Upgrade to versions 18.11.11, 19.0.8, 19.1.6, 19.2.4 or above.

Credits

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

References

Problem Types

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