CVE-2026-18252
GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5, and 19.3 before 19.3.1 that, under certain conditions, an authenticated user with developer-role permissions could have executed arbitrary commands in a CI context, due to the Claude agent processing configuration from a user-controlled source.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
- EPSS probability
- 0.33%
- CWE
- CWE-829
- Published
- 2026-08-26
- Last modified
- 2026-08-27
Affected products
- GitLab GitLab
- GitLab GitLab
- GitLab GitLab
Weakness type
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