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CVE-2026-61559

9.6 Critique

Publiée le 15/09/2026 à 23:16 · Modifiée le 30/09/2026 à 19:51 · Analyse NVD reportée · Source : security-advisories@github.com

Description

`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Starting in version 0.0.1 and prior to version 2.1.27, when the environment variable `ENABLE_DYNAMIC_API_URL=true` is set, the server reads the `X-GitLab-API-URL` HTTP request header and uses it as the base URL for all outbound GitLab API calls made within that request. The server validates that the value is a well-formed URL (`new URL(dynamicApiUrl)`) but applies no allowlist or hostname restriction. The server then attaches the victim's `Private-Token` to every outbound fetch that uses the redirected URL. Any caller who can reach the HTTP transport can set `X-GitLab-API-URL` to an attacker-controlled host. The next GitLab API call the server makes delivers the victim's token to that host. Version 2.1.27 contains a patch.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 9.6 Critique security-advisories@github.com CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Faiblesses (CWE)

Références

Ailleurs