SB2026020918 - Remote code execution in GitLab AI Gateway
Published: February 9, 2026
Security Bulletin ID
SB2026020918
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2026-1868)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure template expansion of user supplied data in the Duo Workflow Service component. A remote user can pass specially crafted Duo Agent Platform Flow definitions and execute arbitrary code on the system.
Remediation
Install update from vendor's website.