Inclusion of Functionality from Untrusted Control Sphere in GitLab (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.
Inclusion of Functionality from Untrusted Control Sphere in GitLab (CVE-2026-18252)
Description
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.
Affected software
pkg:bitnami/gitlabRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-gitlab-2026-18252
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-18252"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- High
Threat ID: 6aa329a191cc7f3848d1c4ee
Added to database: 09/10/2026, 22:05:21 UTC
Last updated: 09/10/2026, 22:05:21 UTC
Views: 1
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