Advisoriesby IbisGitLabCVE-2026-75871
GitLab AI Gateway: server-side request forgery
Fix: upgrade to 19.0.12 or later (3 fixed versions below)
GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.10 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect outbound model requests to an externally-controlled endpoint via a crafted inline flow configuration that overrides the HTTP Host header, resulting in disclosure of Google Cloud Vertex cloud service credentials and private signing keys.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| GitLab AI Gateway Product | >= 18.10, < 19.0.12 | 19.0.12 |
| >= 19.1, < 19.1.7 | 19.1.7 | |
| >= 19.2, < 19.2.2 | 19.2.2 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-918