CVE-2026-75871

CriticalCVSS 9.6/10Last modified Sep 1, 2026

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.

Metrics

CVSS 3.1 9.6/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Aug 27, 2026
Last modified
Sep 1, 2026
NVD status
Analyzed

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CVE-2026-75871: Critical severity, CVSS 9.6 | Vulnix