CyberRota Analysis
AI-GeneratedThe vulnerability arises from the tiger-slack MCP HTTP transport failing to enable the host allow-list feature, allowing attackers to exploit DNS rebinding attacks. This could enable unauthorized access to the locally reachable Slack MCP server through a maliciously crafted webpage. Organizations utilizing tiger-slack should prioritize applying the fix to mitigate potential security risks associated with this vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
tiger-slack started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. mcp/src/httpServer.ts called the shared httpServerFactory helper and never set the DNS-rebinding-protection option, so the transport accepted a request whatever host it named, and a page in a browser could point a name it controlled at the address the server was bound to and drive the locally reachable Slack MCP server through the visitor's browser. The fix passes the option explicitly alongside a dependency update; the update alone would not have closed it. The repository publishes no release that brackets the fix, so the affected boundary is the commit preceding it.