Apache Tomcat versions 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56, and 7.0.27 to 7.0.104 contain a vulnerability in the WebSocket module where the payload length of WebSocket frames is not correctly validated. This can lead to an infinite loop when processing frames with invalid payload lengths. Attackers can exploit this flaw by sending multiple malicious requests, resulting in a denial of service (DoS) on the affected Tomcat instance.
id: CVE-2020-13935
info:
name: Apache Tomcat WebSocket Frame Payload Length Validation Denial of
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