{"id":"EUVD-2026-23300","revision":"c6442dd5c54540ae8aeff2ac6d83b404","records":[{"revision":"c6442dd5c54540ae8aeff2ac6d83b404","observedAt":"2026-10-28T04:58:41.201+00:00","statement":{"source":"euvd","id":"EUVD-2026-23300","aliases":["CVE-2026-39313","GHSA-353c-v8x9-v7c3"],"title":"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…","description":"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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":null}],"references":["https://github.com/QuantGeekDev/mcp-framework/security/advisories/GHSA-353c-v8x9-v7c3","https://github.com/QuantGeekDev/mcp-framework/commit/f97d2bb76d6359faf10cd1fc54b4911476b62524"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-23300","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Apr 16, 2026, 9:24:27 PM","dateUpdated":"Apr 17, 2026, 6:46:07 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-23300","identifiers":["EUVD-2026-23300","CVE-2026-39313","GHSA-353c-v8x9-v7c3"]},"retained":false,"historicalAffected":[]}],"coverage":[]}