SB2026100505 - Remote command execution in GitLab AI Gateway
Published: October 5, 2026
Security Bulletin ID
SB2026100505
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.
CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVSSv4: 8.7 [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]
The vulnerability allows a remote user to execute arbitrary commands on the AI Gateway.
The vulnerability exists due to improper neutralization in the custom flow prompt template when processing a specially crafted flow configuration. A remote user can escape the prompt template sandbox to execute arbitrary commands on the AI Gateway.
Exploitation requires Duo Agent Platform access.
Remediation
Install update from vendor's website.