CVE-2026-19889 Server-Side Request Forgery (SSRF) in GitLab AI Gateway
Authenticated users can redirect AI model requests to external endpoints, exposing cloud service credentials in GitLab AI Gateway.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19889?
CVE-2026-19889 is a high-severity server-side request forgery vulnerability in GitLab AI Gateway, published on 27 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.9.0 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 model requests to an externally-controlled endpoint via crafted model metadata, resulting in the disclosure of Google Vertex AI or AWS Bedrock cloud service credentials.
Weakness: CWE-918
Which versions are affected by CVE-2026-19889?
How do I fix CVE-2026-19889?
No fix has been published for CVE-2026-19889 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-19889 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-19889 exists.
Sources
Also known as GHSA-vm6q-jfj7-8c34.