cve-mcp-server

🛡️ CVE MCP Server AI-powered security intelligence at your fingertips — 28 tools + a one-calltriagecve orchestrator, 24 data sources, one protocol. A production-grade Model Context Protocol MCP server that turns Claude into a full-spectrum security analyst. Instead of juggling 15+ browser tabs...

FastMCP: Post-transform component authorization is skipped on direct calls

Maintainer assessment and remediation This report is accepted as a FastMCP authorization vulnerability. In supported configurations, a server transform can change the metadata used by a component's authorization policy. Direct lookups previously checked the original component but returned the...

FastMCP MCP client wrappers construct M2M OAuth providers without issuer binding — client secret redirectable to attacker-advertised authorization server

Maintainer assessment and remediation This report is accepted as a FastMCP credential-binding vulnerability. Affected versions of the OAuth client credentials providers do not expose the authorization-server issuer that owns pre-registered credentials. An untrusted or compromised MCP server can...

EUVD-2026-101452

MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion...

GHSA-84M7-P3X7-PCFV MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion

Summary In affected versions, a Streamable HTTP server in stateful mode the default never reclaimed session state: - sessions did not expire; - a client DELETE ended the session but left its entry registered; - a session whose first request was refused stayed registered with a running task. Each...

MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion

Summary In affected versions, a Streamable HTTP server in stateful mode the default never reclaimed session state: - sessions did not expire; - a client DELETE ended the session but left its entry registered; - a session whose first request was refused stayed registered with a running task. Each...

CVE-2026-59951

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...

CVE-2026-59951 MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...

CVE-2026-59951 MCP Python SDK: Unbounded Session Accumulation in StreamableHTTP Transport Enables Resource Exhaustion

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...

CVE-2026-59951

The MCP Python SDK (PyPI: mcp) versions 1.8.0 through 1.30.0 and 2.2.0 are vulnerable to unbounded session accumulation within the StreamableHTTP transport . Specifically, stateful servers—including FastMCP , MCPServer , Server.streamable_http_app() , and StreamableHTTPSessionManager —fail to exp...

PT-2026-114229

Name of the Vulnerable Software and Affected Versions mcp versions 1.8.0 through 1.29.9 mcp versions 2.0.0 through 2.1.9 Description Stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamable http app, and StreamableHTTPSessionManager, retain session entries without an idle...

CVE-2026-59951: Uncontrolled Resource Consumption

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. From 1.8.0 until 1.30.0 and 2.2.0, stateful Streamable HTTP servers, including FastMCP, MCPServer, Server.streamablehttpapp, and StreamableHTTPSessionManager, retain session entries without an id...

Reversecore_MCP v3.0.4

Reversecore MCP AI-Powered Reverse Engineering & Security Analysis via Model Context Protocol An MCP server that gives AI assistants like Claude and Cursor the ability to perform reverse engineering, malware analysis, vulnerability research, digital forensics, and source code auditing through...

CLSA-2026-1789551772 TuxCare security update for fastmcp (2 CVEs)

TuxCare rebuilt fastmcp to address 2 CVEs. Fixed in 2.14.5.post3+tuxcare...

PT-2026-99400

TuxCare rebuilt fastmcp to address 2 CVEs. Fixed in 2.14.5.post3+tuxcare...

CLSA-2026-1788514996 TuxCare security update for fastmcp (1 CVE)

TuxCare rebuilt fastmcp to address 1 CVE. Fixed in 2.14.5.post2+tuxcare...

PT-2026-91372

TuxCare rebuilt fastmcp to address 1 CVE. Fixed in 2.14.5.post2+tuxcare...

CVE-2026-62316

Microsoft UFO (open-source intelligent automation framework) is vulnerable to a DNS rebinding attack in versions prior to 3.0.8 . The component ufo/client/mcp/http_servers/linux_mcp_server.py binds a FastMCP streamable HTTP server to localhost:8010 without validating Host , Origin , or Sec-Fetch-...

EUVD-2026-64136

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, ufo/client/mcp/httpservers/linuxmcpserver.py binds a FastMCP streamable HTTP server to localhost:8010 but does not validate the Host, Origin, or Sec-Fetch-Site headers. An...

CVE-2026-62316 Microsoft UFO: DNS Rebinding → Unauthenticated File Read / Command Execution

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, ufo/client/mcp/httpservers/linuxmcpserver.py binds a FastMCP streamable HTTP server to localhost:8010 but does not validate the Host, Origin, or Sec-Fetch-Site headers. An...