GitLab Patches Critical 9.9 AI Gateway Flaw Allowing Command Execution on Self-Hosted Servers
A critical flaw in GitLab's AI Gateway could let a logged-in user with Duo Agent Platform access run commands on the gateway under certain conditions, GitLab said in an advisory . The gateway is the service that connects a GitLab instance to AI models, and only organizations that host their own gateway need to act. The flaw is fixed in gateway versions 19.2.4, 19.3.2, and 19.4.1. The flaw is tracked as CVE-2026-90970 . GitLab disclosed it on October 2 and rated it critical, with a CVSS score of 9.9 out of 10. GitLab runs AI Gateways for its customers and has already fixed them. Customers on GitLab.com, GitLab Dedicated, and self-managed instances that use a GitLab-hosted gateway do not need to act, the company said. Self-managed customers can instead host their own gateway , an option GitLab offers for keeping AI request and response data inside the customer's own environment. GitLab strongly recommends that those customers update immediately. It sent that gui...
Oct 02, 2026