CVE-2026-19889

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.

CVSS v3.1

8.2 HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N

EPSS

0.19% chance of exploitation in the next 30 days, 9th percentile

Published

2026-08-27

Proof-of-concept exploits (1)

• https://hackerone.com/reports/3938027

References

• CVE Record
• NVD entry

Related

• CVE-2026-19848
• CVE-2026-19894
• CVE-2026-19847
• CVE-2026-19895
• CVE-2026-19846
• CVE-2026-19896