Model Context Protocol server core for the BEAM: protocol handling, stdio and stateless Streamable HTTP transports, and JSON Schema validation, with the tool catalog and dispatch injected by the host.
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2 Advisories
beam_mcp: JSON boolean and null tool arguments reach dispatch as strings
Affected Versions
References
- https://cna.erlef.org/cves/CVE-2026-104634.html
- https://github.com/ScriptKittyOS/beam_mcp/commit/083838eb8e17fe5f6fcaf761bdbe203110288b0b
- https://github.com/ScriptKittyOS/beam_mcp/commit/289dbdbad641943b29a3b8d1eb36506cc8cec10a
- https://github.com/ScriptKittyOS/beam_mcp/security/advisories/GHSA-wv7p-j6qh-3hj4
- https://hex.pm/packages/beam_mcp
beam_mcp: nested tool argument constraints advertised but not enforced
Affected Versions
References
- https://cna.erlef.org/cves/CVE-2026-88257.html
- https://github.com/ScriptKittyOS/beam_mcp/commit/083838eb8e17fe5f6fcaf761bdbe203110288b0b
- https://github.com/ScriptKittyOS/beam_mcp/commit/289dbdbad641943b29a3b8d1eb36506cc8cec10a
- https://github.com/ScriptKittyOS/beam_mcp/security/advisories/GHSA-mrg2-4747-fmpw
- https://hex.pm/packages/beam_mcp
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