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CVE-2026-19889

HIGHCVSS 8.2/10EPSS 0.19%

Last modified

CVE-2026-19889 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.2/10

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

EPSS Probability
0.19%

8.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
GitLabGitLab AI Gateway>= 18.9, < 19.0.12; >= 19.1, < 19.1.7; >= 19.2, < 19.2.2

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is 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.
How severe is CVE-2026-19889?
CVE-2026-19889 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2026-19889?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST