agent-router: MCP session resume does not verify the embedded anti-hijacking subject; default Helm seed makes session IDs forgeable

Summary The MCP proxy's client-facing session ID embeds the authenticated caller's subject JWT sub claim specifically as an anti-hijacking discriminator — matching the Model Context Protocol specification's documented session-hijacking guidance...

CVE-2026-79537

metatool-ai MetaMCP through 2.4.22 contains an insecure direct object reference IDOR in the MCP transport session dispatch. The session store getSession in session-lifetime-manager.ts is keyed only by the client-supplied mcp-session-id header with no owner, namespace, or endpoint binding, and the...

CVE-2026-79537

metatool-ai MetaMCP through 2.4.22 contains an insecure direct object reference IDOR in the MCP transport session dispatch. The session store getSession in session-lifetime-manager.ts is keyed only by the client-supplied mcp-session-id header with no owner, namespace, or endpoint binding, and the...

CVE-2026-79537

metatool-ai MetaMCP through 2.4.22 contains an insecure direct object reference IDOR in the MCP transport session dispatch. The session store getSession in session-lifetime-manager.ts is keyed only by the client-supplied mcp-session-id header with no owner, namespace, or endpoint binding, and the...

CVE-2026-79537

metatool-ai MetaMCP through 2.4.22 contains an insecure direct object reference IDOR in the MCP transport session dispatch. The session store getSession in session-lifetime-manager.ts is keyed only by the client-supplied mcp-session-id header with no owner, namespace, or endpoint binding, and the...

EUVD-2026-89362

metatool-ai MetaMCP through 2.4.22 contains an insecure direct object reference IDOR in the MCP transport session dispatch. The session store getSession in session-lifetime-manager.ts is keyed only by the client-supplied mcp-session-id header with no owner, namespace, or endpoint binding, and the...

CVE-2026-79537

metatool-ai MetaMCP versions through 2.4.22 are vulnerable to an Insecure Direct Object Reference (IDOR) in the MCP transport session dispatch. The root cause is that the session store (getSession in session-lifetime-manager.ts) is keyed solely by the client-supplied mcp-session-id header without...

CVE-2026-52869

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. Prior to 1.27.2, the SSE and stateful Streamable HTTP transports mcp.server.sse.SseServerTransport and mcp.server.streamablehttpmanager.StreamableHTTPSessionManager route requests to existing...