CVE-2026-61542 Gearboy advisory / Gearsystem body: Unauthenticated network exposure of MCP HTTP tools

Gearboy is a Game Boy, Game Boy Color, and Super Game Boy emulator and debugger with an embedded MCP server. Gearsystem, the affected component, has an optional --mcp-http mode that accepts unauthenticated MCP requests from any reachable network peer despite localhost-only documentation and...

CVE-2026-61542 Gearboy advisory / Gearsystem body: Unauthenticated network exposure of MCP HTTP tools

Gearboy is a Game Boy, Game Boy Color, and Super Game Boy emulator and debugger with an embedded MCP server. Gearsystem, the affected component, has an optional --mcp-http mode that accepts unauthenticated MCP requests from any reachable network peer despite localhost-only documentation and...

CVE-2026-61542

The Gearboy emulator and debugger is vulnerable in its Gearsystem component when using the optional --mcp-http mode. The underlying cause is that the platforms/shared/desktop/mcp/mcp_transport.h transport binds to INADDR_ANY (typically on port 7777) and fails to perform Authorization , Host , or ...

Nacho Sanchez Gines Gearboy authorization issue vulnerability

Versions of Nacho Sanchez Gines Gearboy prior to 3.8.7 contain an authorization issue vulnerability. This vulnerability arises because its MCP HTTP mode accepts unauthenticated MCP requests; the socket is bound to INADDRANY without checking Authorization, Host, and Origin parameters. As a result,...

PYSEC-2026-4257 PraisonAI: MCP HTTP-stream transport is unauthenticated by default, exposing tool enumeration and an unvalidated tool-call surface

Summary PraisonAI's MCP HTTP-stream server authenticates requests only when an API key is configured; the CLI defaults --api-key to None, so praisonai mcp serve --transport http-stream exposes the full MCP surface unauthenticated. A request with no Authorization and no Origin can initialize and...

PraisonAI: MCP HTTP-stream transport is unauthenticated by default, exposing tool enumeration and an unvalidated tool-call surface

Summary PraisonAI's MCP HTTP-stream server authenticates requests only when an API key is configured; the CLI defaults --api-key to None, so praisonai mcp serve --transport http-stream exposes the full MCP surface unauthenticated. A request with no Authorization and no Origin can initialize and...

PT-2026-106739

Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the execute command tool in ufo/client/mcp/http servers/linux mcp server.py treats sort and uniq as read-only commands while the free-form command parameter can select their...

CVE-2026-90617

A vulnerability was detected in GH05TCREW PentestAgent up to cf882dabea3ed91cef016cdd115e5426315665a2. This vulnerability affects the function runtask of the file interface/main.py of the component MCP HTTP Server. Performing a manipulation results in os command injection. The attack is possible ...

CVE-2026-90617 GH05TCREW PentestAgent MCP HTTP Server main.py run_task os command injection

A vulnerability was detected in GH05TCREW PentestAgent up to cf882dabea3ed91cef016cdd115e5426315665a2. This vulnerability affects the function runtask of the file interface/main.py of the component MCP HTTP Server. Performing a manipulation results in os command injection. The attack is possible ...

CVE-2026-90617 GH05TCREW PentestAgent MCP HTTP Server main.py run_task os command injection

A vulnerability was detected in GH05TCREW PentestAgent up to cf882dabea3ed91cef016cdd115e5426315665a2. This vulnerability affects the function runtask of the file interface/main.py of the component MCP HTTP Server. Performing a manipulation results in os command injection. The attack is possible ...

CVE-2026-90617 GH05TCREW PentestAgent MCP HTTP Server main.py run_task os command injection

A vulnerability was detected in GH05TCREW PentestAgent up to cf882dabea3ed91cef016cdd115e5426315665a2. This vulnerability affects the function runtask of the file interface/main.py of the component MCP HTTP Server. Performing a manipulation results in os command injection. The attack is possible ...

CVE-2026-90617

GH05TCREW PentestAgent contains an os command injection in the MCP HTTP Server component, specifically in the run_task function of interface/main.py . The vulnerability is reachable remotely with no privileges required, allowing an attacker to manipulate input to execute arbitrary OS commands. Im...

EUVD-2026-77176

A vulnerability was detected in GH05TCREW PentestAgent up to cf882dabea3ed91cef016cdd115e5426315665a2. This vulnerability affects the function runtask of the file interface/main.py of the component MCP HTTP Server. Performing a manipulation results in os command injection. The attack is possible ...

CVE-2026-90617: Improper Neutralization of Special Elements used in an OS Command

A vulnerability was detected in GH05TCREW PentestAgent up to cf882dabea3ed91cef016cdd115e5426315665a2. This vulnerability affects the function runtask of the file interface/main.py of the component MCP HTTP Server. Performing a manipulation results in os command injection. The attack is possible ...

PT-2026-91031

Name of the Vulnerable Software and Affected Versions GH05TCREW PentestAgent versions up to cf882dabea3ed91cef016cdd115e5426315665a2 Description An OS command injection flaw exists in the MCP HTTP Server component within the run task function of the interface/main.py file. This issue allows a...

PraisonAI has an origin validation bypass in MCP HTTP Stream transport that allows browser-mediated unauthenticated tool execution on local MCP server

SummaryPraisonAI's MCP HTTP Stream transport uses an unsafe prefix match when validating the Origin header. The default localhost allowlist includes origins such as http://localhost, and the validation accepts any origin that starts with an allowed value.As a result, an attacker-controlled origin...

PYSEC-2026-3896 PraisonAI has an origin validation bypass in MCP HTTP Stream transport that allows browser-mediated unauthenticated tool execution on local MCP server

Summary PraisonAI's MCP HTTP Stream transport uses an unsafe prefix match when validating the Origin header. The default localhost allowlist includes origins such as http://localhost, and the validation accepts any origin that starts with an allowed value. As a result, an attacker-controlled orig...

CVE-2026-81735

startServer.ts in the mcp-http-server package of UI-TARS-desktop defaulted its listen address to '::' when no host was given, so startSseAndStreamableHttpMcpServer bound the Streamable HTTP and SSE MCP transports to every interface, and its authentication middleware was optional: middlewares are...

CVE-2026-81735

startServer.ts in the mcp-http-server package of UI-TARS-desktop defaulted its listen address to '::' when no host was given, so startSseAndStreamableHttpMcpServer bound the Streamable HTTP and SSE MCP transports to every interface, and its authentication middleware was optional: middlewares are...

EUVD-2026-67078

startServer.ts in the mcp-http-server package of UI-TARS-desktop defaulted its listen address to '::' when no host was given, so startSseAndStreamableHttpMcpServer bound the Streamable HTTP and SSE MCP transports to every interface, and its authentication middleware was optional: middlewares are...