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0 CVE-2026-39313 is a high-severity vulnerability in the QuantGeekDev mcp-framework versions 0.2.21 and below. The vulnerability arises because the readRequestBody() function concatenates HTTP request body chunks without enforcing any size limit, despite the existence of a maxMessageSize configuration parameter. This allows a remote unauthenticated attacker to send a single large POST request to the /mcp endpoint, causing memory exhaustion and denial of service. The issue has been fixed in version 0.2.22. Join the discussion | CVE Database V5 | 04/16/2026, 21:24:27 UTC Added: 04/16/2026, 21:31:50 UTC |
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