CVE-2026-1868criticalCWE-1336

CVE-2026-1868: critical vulnerability in GitLab AI Gateway

Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway

Published

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.9epss 0.6%
exploitation probability
0.6%top 54% of all CVEs
observed exploitation
nono source reports it
GitLab has remediated a vulnerability in the Duo Workflow Service component of GitLab AI Gateway affecting all versions of the AI Gateway from 18.1.6, 18.2.6, 18.3.1 to 18.6.1, 18.7.0, and 18.8.0 in which AI Gateway was vulnerable to insecure template expansion of user supplied data via crafted Duo Agent Platform Flow definitions. This vulnerability could be used to cause Denial of Service or gain code execution on the Gateway. This has been fixed in versions 18.6.2, 18.7.1, and 18.8.1 of the GitLab AI Gateway.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
GitLab · GitLab AI Gateway
Related CVEs — GitLab AI Gateway

In the same product, most dangerous first.

CVE-2026-90970CRITICALImproper Neutralization of Special Elements Used in a Template Engine in GitLab AI GatewayEPSS 0.9%CVE-2026-75871HIGHServer-Side Request Forgery (SSRF) in GitLab AI GatewayEPSS 0.3%CVE-2026-19889HIGHServer-Side Request Forgery (SSRF) in GitLab AI GatewayEPSS 0.2%
References
https://about.gitlab.com/releases/2026/02/06/patch-release-gitlab-ai-gateway-18-8-1-released/https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/work_items/1850