CVE-2020-11996

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CVSS 3.1

7.5 high

EPSS

27%p98

Published

Jun 26, 2020 (Jun 26, 2020)

Modified

Jun 17, 2026

Description

A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.

Vendors: apache canonical oracle opensuse debian netapp
Products: tomcat, ubuntu linux, mysql enterprise monitor, siebel ui framework, workload manager, leap, debian linux, oncommand system manager
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (26.7%)

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