CVE-2026-1868

CRITICAL LAB

GitLab AI Gateway <18.6.1-18.8.0 - DoS/Code Execution

Title source: llm

Description

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.

Exploits (1)

github STUB 1 stars
by exploitintel · pythonpoc
https://github.com/exploitintel/eip-pocs-and-cves/tree/main/CVE-2026-1868

Scores

CVSS v3 9.9
EPSS 0.0003
EPSS Percentile 8.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Lab Environment

Lab screenshot
vulnerable
docker pull ghcr.io/exploitintel/cve-2026-1868-vulnerable:latest
All Labs GitHub

Classification

CWE
CWE-1336
Status draft

Timeline

Published Feb 09, 2026
Tracked Since Feb 18, 2026