CVE-2026-19889

Server-Side Request Forgery (SSRF) in GitLab AI Gateway

HIGH
8.2
CVSS Score
Published: August 27, 2026 at 04:33 PM UTC
Updated: August 28, 2026 at 04:02 PM UTC
1 product affected across 1 vendorAI Gateway

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

18.9 ≤ v < 19.0.1219.1 ≤ v < 19.1.719.2 ≤ v < 19.2.218.919.119.2
Affected range stops below 19.0.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.1.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 19.2.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Technical DescriptionExploitPermissions Required
Source: cverecord
https://hackerone.com/reports/3938027

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHGitLab
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-918

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