CyberRota Analysis
AI-GeneratedThe vulnerability affects the `@zereight/mcp-gitlab` Model Context Protocol server in GitLab versions prior to 2.1.30, allowing attackers to exploit the Streamable HTTP MCP endpoint due to the absence of a proper Host or Origin allowlist. This flaw enables DNS rebinding attacks, which can redirect browser requests to a victim's local MCP listener, potentially leading to unauthorized access and manipulation of sensitive data. Organizations using affected versions of GitLab should prioritize upgrading to version 2.1.30 or later to mitigate this critical risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Versions prior to 2.1.30 expose the Streamable HTTP MCP endpoint without an effective Host or Origin allowlist. A malicious web page can use DNS rebinding to route browser requests to a victim's local MCP listener while preserving an attacker-controlled `Host` and `Origin`. The server accepts those headers and reaches the MCP initialization path instead of rejecting the request at the HTTP boundary. Version 2.1.30 contains a patch.