CVE-2025-7659

Origin Validation Error in GitLab

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to steal tokens and access private repositories by abusing incomplete validation in the Web IDE.

Affected

GitLab

CVSS v3.1 NVD

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 GITLAB

8.0 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS

0.22% chance of exploitation in the next 30 days, 12th percentile

Published

2026-02-11

Updated

2026-02-26

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3234976

Security advisories

• https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released
• https://gitlab.com/gitlab-org/gitlab/-/issues/555440

References

• CVE Record
• NVD entry