CVE-2026-39313
CVE-2026-39313 · MCP-Framework: Unbounded memory allocation in readRequestBody allows denial of service via HTTP transport
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
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.
CVSS 8.7 · Alta · EPSS 0,5% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
mcp-framework
- Versiones
- < 0.2.22: Afectada
Sin corrección publicada
mcp-framework npm
- Intervalos de versiones afectados
- SEMVER: < 0.2.22
Actualiza a 0.2.22