High severity · published Aug 27, 2026
CVE-2026-19889
Server-Side Request Forgery (SSRF) in GitLab AI Gateway
8.2
CVSS
0.4%
EPSS
No
On KEV
Description
GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gateway from 18.9.0 to 19.0.12, 19.1 to 19.1.7, and 19.2 to 19.2.2 that could have allowed an authenticated user with Duo Agent Platform access to redirect model requests to an externally-controlled endpoint via crafted model metadata, resulting in the disclosure of Google Vertex AI or AWS Bedrock cloud service credentials.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 29% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GA
GitLab AI Gateway · GitLab
18.9 before 19.0.12; 19.1 before 19.1.7; 19.2 before 19.2.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-19889
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-19889
gitlab.com
https://gitlab.com/gitlab-org/gitlab/-/work_items/614164
hackerone.com
https://hackerone.com/reports/3938027
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