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[ CVE-2026-90970 · Published 2 Oct 2026 ]

Vulnerability in GitLab AI Gateway

CVSS 9.9 EPSS <1%1 agency advisoryFix available

[ Why it matters ]Priority signals

  • Critical severity: CVSS 9.9

[ Description ]Official description

GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.1.6 before 19.2.4, 19.3 before 19.3.2, and 19.4 before 19.4.1 that, under certain conditions, could have allowed an authenticated user with Duo Agent Platform access to escape the prompt template sandbox via a specially crafted flow configuration, resulting in arbitrary command execution on the AI Gateway.

[ Fixes ]Fixes and patches

  • Security bulletin: GitLabVendor patch or bulletin · CERT-FR · docs.gitlab.com/releases/patches/other-patches/patch-release-gitlab-ai, cited by CERT-FR CERTFR-2026-AVI-1262

[ Advisories ]Government CERT advisories

  • CERT-FRCERTFR-2026-AVI-1262

    Vulnerability in GitLab Translated from French

    A vulnerability has been discovered in GitLab. It allows an attacker to cause remote arbitrary code execution.

    CVE-2026-90970

[ References ]References