Critical severity · published Feb 9, 2026
CVE-2026-1868
Improper Neutralization of Special Elements Used in a Template Engine in GitLab AI Gateway
9.9
CVSS
0.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GA
GitLab AI Gateway · GitLab
18.1.6 before 18.6.2; 18.7.0 before 18.7.1; 18.8.0 before 18.8.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1868
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1868
about.gitlab.com
https://about.gitlab.com/releases/2026/02/06/patch-release-gitlab-ai-gateway-18-8-1-released/
gitlab.com
https://gitlab.com/gitlab-org/modelops/applied-ml/code-suggestions/ai-assist/-/work_items/1850
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