GHSA-wm9h-qwfm-wf3gHighCVSS 6.8
tiger-gh-mcp-server started its MCP HTTP transport without enabling the host allow-list the...
🔗 CVE IDs covered (1)
📋 Description
tiger-gh-mcp-server started its MCP HTTP transport without enabling the host allow-list the underlying SDK provides. 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, making the locally reachable GitHub MCP endpoint drivable from a page in a visitor's browser that pointed a name it controlled at the bound address. The fix passes the option explicitly alongside a dependency update; the update alone would not have closed it. The repository has published no release that brackets the fix, so the affected boundary is the commit preceding it.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-81100
- https://github.com/timescale/tiger-gh-mcp-server/pull/36
- https://github.com/timescale/tiger-gh-mcp-server
- https://www.vulncheck.com/advisories/timescale-tiger-gh-mcp-server-dns-rebinding-via-disabled-host-header-allow-list
- https://github.com/advisories/GHSA-wm9h-qwfm-wf3g