pentest-mcp

es-define-property Object.defineProperty, but not IE 8's broken one. Example const assert = require'assert'; const $defineProperty = require'es-define-property'; if $defineProperty assert.equal$defineProperty, Object.defineProperty; else if Object.defineProperty assert.equal$defineProperty, false...

blitzstrike

Blitz Strike Reconnaissance at speed. Analysis in depth. Validation before report. Blitz Strike is a structured penetration-testing methodology — reconnaissance, source analysis, and validation — delivered as a universal MCP server. It enumerates the attack surface BLITZ, traces source-to-sink...

CVE-2026-53965: Uncontrolled Resource Consumption

The MCP PHP SDK Composer package mcp/sdk is the official Model Context Protocol SDK for PHP. In versions 0.5.0 through 0.7.0, the HTTP client transport reads a Server-Sent Events response stream incrementally and appends each chunk to an in-memory buffer with no upper bound. The buffer is only...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the processSSEStream function. An attacker can cause the client to exhaust system memory and crash by streaming data without the expected event delimiter, resulting in unbound...

PT-2026-80737

Name of the Vulnerable Software and Affected Versions mcp/sdk versions 0.5.0 through 0.7.0 Description The HTTP client transport in the MCP PHP SDK reads a Server-Sent Events SSE response stream incrementally and appends data to an in-memory buffer sseBuffer without an upper bound. The buffer is...

SUSE CVE-2026-34742

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.0, the Model Context Protocol MCP Go SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication with StreamableHTTPHandler or...

CVE-2026-42449 n8n-MCP: IPv4-mapped IPv6 addresses bypass SSRF protection in validateUrlSync(), enabling full SSRF for SDK embedders

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. In versions 2.47.4 through 2.47.13, the SDK embedder path N8NDocumentationMCPServer constructor, getN8nApiClient, and validateInstanceContext, the synchronous URL validator in...

CVE-2026-33252: Cross-Site Request Forgery (CSRF)

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.1, the Go SDK's Streamable HTTP transport accepted browser-generated cross-site POST requests without validating the Origin header and without requiring Content-Type: application/json. In deployments without Authorization,...

CVE-2026-33252 MCP Go SDK Allows Cross-Site Tool Execution for HTTP Servers without Authorizatrion

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.1, the Go SDK's Streamable HTTP transport accepted browser-generated cross-site POST requests without validating the Origin header and without requiring Content-Type: application/json. In deployments without Authorization,...

EUVD-2026-14643

The Go MCP SDK used Go's standard encoding/json. Prior to version 1.4.1, the Go SDK's Streamable HTTP transport accepted browser-generated cross-site POST requests without validating the Origin header and without requiring Content-Type: application/json. In deployments without Authorization,...

CVE-2026-27896

A flaw was found in the Go MCP SDK. This issue occurs due to an improper handling of case sensitivity during JSON-RPC message parsing, specifically in the matching of JSON keys to struct field tags. This behavior violates the JSON-RPC 2.0 specification, which explicitly requires case-sensitive...

CVE-2026-27896

The Go MCP SDK used Go's standard encoding/json.Unmarshal for JSON-RPC and MCP protocol message parsing in versions prior to 1.3.1. Go's standard library performs case-insensitive matching of JSON keys to struct field tags — a field tagged json:"method" would also match "Method", "METHOD", etc...

CVE-2026-27896: Improper Handling of Case Sensitivity

The Go MCP SDK used Go's standard encoding/json.Unmarshal for JSON-RPC and MCP protocol message parsing in versions prior to 1.3.1. Go's standard library performs case-insensitive matching of JSON keys to struct field tags — a field tagged json:"method" would also match "Method", "METHOD", etc...

CVE-2025-53366 MCP SDK Vulnerable to FastMCP Server Validation Error, Leading to Denial of Service

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. Prior to version 1.9.4, a validation error in the MCP SDK can cause an unhandled exception when processing malformed requests, resulting in service unavailability 500 errors until manually...

CVE-2025-53366 MCP SDK Vulnerable to FastMCP Server Validation Error, Leading to Denial of Service

The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol MCP. Prior to version 1.9.4, a validation error in the MCP SDK can cause an unhandled exception when processing malformed requests, resulting in service unavailability 500 errors until manually...

CVE-2025-53366

CVE-2025-53366 relates to the MCP Python SDK (PyPI: mcp). Before version 1.9.4, a validation error can trigger an unhandled exception when processing malformed requests, resulting in service unavailability (HTTP 500) that requires manual restart. The issue varies by deployment conditions and resi...