Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 18.10.0, < 19.0.12 |
Related Weaknesses (CWE)
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/616990Broken Link
- https://hackerone.com/reports/3945100Broken Link
FAQ
What is CVE-2026-75871?
CVE-2026-75871 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 a...
How severe is CVE-2026-75871?
CVE-2026-75871 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-75871?
Check the references section above for vendor advisories and patch information. Affected products include: Gitlab Gitlab.