CVE-2026-75871: GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 1
Summary
GitLab fixed a vulnerability in the GitLab AI Gateway (a component that manages AI requests) that affected versions 18.10 through 19.2.2. An authenticated user could exploit this by crafting a malicious configuration to redirect AI model requests to an external server they control, potentially stealing Google Cloud credentials and private signing keys (secret authentication material).
Solution / Mitigation
Update to GitLab AI Gateway version 19.0.13 or later, 19.1.8 or later, or 19.2.3 or later, depending on which version line you are running.
Vulnerability Details
8.2(high)
EPSS: 0.0%
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
network
high
low
none
August 27, 2026
Classification
Taxonomy References
Affected Vendors
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-75871
First tracked: August 27, 2026 at 02:07 PM
Classified by LLM (prompt v3) · confidence: 92%