MCP-Framework: Unbounded memory allocation in readRequestBody allows denial of service via HTTP transport
概要
MCP-Framework: Unbounded memory allocation in readRequestBody allows denial of service via HTTP transport
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
mcp-framework is a framework for building Model Context Protocol (MCP) servers. In versions 0.2.21 and below, the readRequestBody() function in the HTTP transport concatenates request body chunks into a string with no size limit. Although a maxMessageSize configuration value exists, it is never enforced in readRequestBody(). A remote unauthenticated attacker can crash any mcp-framework HTTP server by sending a single large POST request to /mcp, causing memory exhaustion and denial of service. This issue has been fixed in version 0.2.22.
出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
参照URL
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com