CVE-2026-40159 PraisonAI Exposes Sensitive Environment Variable via Untrusted MCP Subprocess Execution

PraisonAI is a multi-agent teams system. Prior to 4.5.128, PraisonAI’s MCP Model Context Protocol integration allows spawning background servers via stdio using user-supplied command strings e.g., MCP"npx -y @smithery/cli ...". These commands are executed through Python’s subprocess module. By...

CVE-2026-40159

PraisonAI's MCP integration (before 4.5.128) spawns background processes via stdio using user-supplied commands, and forwards the full parent environment to the subprocess. This allows any MCP invocation to inherit sensitive variables (API keys, tokens, database credentials), enabling potential c...

CVE-2026-35577 Missing Host Header Validation in Apollo MCP Server for Localhost Deployments

Apollo MCP Server is a Model Context Protocol server that exposes GraphQL operations as MCP tools. Prior to version 1.7.0, the Apollo MCP Server did not validate the Host header on incoming HTTP requests when using StreamableHTTP transport. In configurations where an HTTP-based MCP server is run ...

CVE-2026-35577 Missing Host Header Validation in Apollo MCP Server for Localhost Deployments

Apollo MCP Server is a Model Context Protocol server that exposes GraphQL operations as MCP tools. Prior to version 1.7.0, the Apollo MCP Server did not validate the Host header on incoming HTTP requests when using StreamableHTTP transport. In configurations where an HTTP-based MCP server is run ...

CVE-2026-39974

n8n-MCP is a Model Context Protocol MCP server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Prior to 2.47.4, an authenticated Server-Side Request Forgery in n8n-mcp allows a caller holding a valid AUTHTOKEN to cause the server to iss...

EUVD-2026-20968

n8n-MCP is a Model Context Protocol MCP server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Prior to 2.47.4, an authenticated Server-Side Request Forgery in n8n-mcp allows a caller holding a valid AUTHTOKEN to cause the server to iss...

CVE-2026-39974 n8n-MCP has an Authenticated SSRF via instance-URL header in multi-tenant HTTP mode

n8n-MCP is a Model Context Protocol MCP server that provides AI assistants with comprehensive access to n8n node documentation, properties, and operations. Prior to 2.47.4, an authenticated Server-Side Request Forgery in n8n-mcp allows a caller holding a valid AUTHTOKEN to cause the server to iss...

PT-2026-31715

Apollo MCP Server is a Model Context Protocol server that exposes GraphQL operations as MCP tools. Prior to version 1.7.0, the Apollo MCP Server did not validate the Host header on incoming HTTP requests when using StreamableHTTP transport. In configurations where an HTTP-based MCP server is run ...

Arbitrary Command Injection

Overview @idachev/mcp-javadc is a Model Context Protocol MCP server for Java decompilation Affected versions of this package are vulnerable to Arbitrary Command Injection via the HTTP Interface component when processing the jarFilePath argument. An attacker can execute arbitrary operating system...

PT-2026-31451

Name of the Vulnerable Software and Affected Versions: FrontMCP versions prior to 2.3.0 Description: The mcp-from-openapi library uses @apidevtools/json-schema-ref-parser to dereference $ref pointers in OpenAPI specifications without URL restrictions. A malicious OpenAPI specification with $ref...

MCP-DPT: A Defense-Placement Taxonomy and Coverage Analysis for Model Context Protocol Security

The Model Context Protocol MCP enables large language models LLMs to dynamically discover and invoke third-party tools, significantly expanding agent capabilities while introducing a distinct security landscape. Unlike prompt-only interactions, MCP exposes pre-execution artifacts, shared context,...

CVE-2026-35568

MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to 1.0.0, the java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, o...

CVE-2026-35568 MCP Java-SDK has a DNS Rebinding Vulnerability

MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to 1.0.0, the java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, o...

CVE-2026-35568

MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to 1.0.0, the java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, o...

CVE-2026-35568

The CVE-2026-35568 entry corresponds to a DNS rebinding vulnerability in the MCP Java SDK (official Java SDK for Model Context Protocol servers/clients). Prior to version 1.0.0, the java-sdk did not validate the Origin header, enabling an attacker-controlled webpage on local or adjacent networks ...

CVE-2026-35568 MCP Java-SDK has a DNS Rebinding Vulnerability

MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to 1.0.0, the java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, o...

CVE-2026-35568 MCP Java-SDK has a DNS Rebinding Vulnerability

MCP Java SDK is the official Java SDK for Model Context Protocol servers and clients. Prior to 1.0.0, the java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, o...

GHSA-8JXR-PR72-R468 Java-SDK has a DNS Rebinding Vulnerability

Summary The java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, or network adjacent. This allows an attacker to make any tool call to the server as if they wer...

Java-SDK has a DNS Rebinding Vulnerability

Summary The java-sdk contains a DNS rebinding vulnerability. This vulnerability allows an attacker to access a locally or network-private java-sdk MCP server via a victims browser that is either local, or network adjacent. This allows an attacker to make any tool call to the server as if they wer...

PT-2026-31030

Name of the Vulnerable Software and Affected Versions MCP Java SDK versions prior to 1.0.0 Description The MCP Java SDK contains a DNS rebinding vulnerability. This allows an attacker to access a locally or network-private MCP server via a victim's browser. An attacker can then make any tool call...