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CVE-2026-19889— Server-Side Request Forgery (SSRF) in GitLab AI Gateway

Quick assessment

Affected
GitLab GitLab AI Gateway
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GitLab AI Gateway是美国GitLab公司的一个统一管理人工智能模型接口访问的网关。 GitLab AI Gateway 18.9.0版本至19.0.12版本、19.1版本至19.1.7版本和19.2版本至19.2.2版本存在服务端请求伪造漏洞，该漏洞源于精心构造的模型元数据，可能允许经过身份验证的具有Duo Agent Platform访问权限的用户将模型请求重定向到外部控制的端点，导致Google Vertex AI或AWS Bedrock云服务凭据泄露。

CVSS 8.2 · High EPSS 0.22% · P11

Affected Version Matrix 3

VendorProduct Version RangeStatus
GitLab GitLab AI Gateway 18.9< 19.0.12 affected
19.1< 19.1.7 affected
19.2< 19.2.2 affected
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I. Basic Information for CVE-2026-19889

Vulnerability Information
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Vulnerability Title
Server-Side Request Forgery (SSRF) in GitLab AI Gateway
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab AI Gateway 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab AI Gateway是美国GitLab公司的一个统一管理人工智能模型接口访问的网关。 GitLab AI Gateway 18.9.0版本至19.0.12版本、19.1版本至19.1.7版本和19.2版本至19.2.2版本存在服务端请求伪造漏洞，该漏洞源于精心构造的模型元数据，可能允许经过身份验证的具有Duo Agent Platform访问权限的用户将模型请求重定向到外部控制的端点，导致Google Vertex AI或AWS Bedrock云服务凭据泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GitLab GitLab AI Gateway 18.9 ~ 19.0.12 cpe:2.3:a:gitlab:ai-gateway:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-19889

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III. Intelligence Information for CVE-2026-19889

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Other References for CVE-2026-19889 (1)

Same Patch Batch · GitLab · 2026-08-27 · 3 CVEs total

CVE-2026-75871 8.2 HIGH Server-Side Request Forgery (SSRF) in GitLab AI Gateway
CVE-2026-4398 5.4 MEDIUM Authorization Bypass Through User-Controlled Key in GitLab

IV. Related Vulnerabilities

Same product: GitLab AI Gateway
Same vendor: GitLab
Same weakness: CWE-918

V. Comments for CVE-2026-19889

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