Description
An issue has been discovered in GitLab CE/EE affecting all versions before 17.10.7, 17.11 before 17.11.3, and 18.0 before 18.0.1. An attacker may be able to reveal masked or hidden CI variables (that they did not author) in the WebUI, by simply creating their own variable and observing the HTTP response.
References (1)
Core 1
Core References
Broken Link issue-tracking
permissions-required
https://gitlab.com/gitlab-org/gitlab/-/issues/524455
Scores
CVSS v3
4.9
EPSS
0.0037
EPSS Percentile
28.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-1220
Status
published
Products (2)
gitlab/gitlab
18.0.0 (2 CPE variants)
gitlab/gitlab
< 17.10.7 (2 CPE variants)
Published
May 22, 2025
Tracked Since
Feb 18, 2026