GitHub Advisoryadvisory · Maven

GHSA-53hp-jpwq-2jgq Uncontrolled Resource Consumption in Apache Tomcat

HIGH Published 2022-02-09 Modified 2026-06-11 Official page ↗
Aliases
CVE-2020-11996
Ecosystem
Maven
Packages
org.apache.tomcat:tomcat, org.apache.tomcat.embed:tomcat-embed-core
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-400
Reviewed
2021-04-12

Affected packages

• Maven org.apache.tomcat:tomcat: >= 10.0.0-M1, < 10.0.0-M5 → fixed in 10.0.0-M5 • Maven org.apache.tomcat:tomcat: >= 9.0.0.M1, < 9.0.35 → fixed in 9.0.35 • Maven org.apache.tomcat:tomcat: >= 8.5.0, < 8.5.55 → fixed in 8.5.55 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 10.0.0-M1, < 10.0.0-M5 → fixed in 10.0.0-M5 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 9.0.0.M1, < 9.0.35 → fixed in 9.0.35 • Maven org.apache.tomcat.embed:tomcat-embed-core: >= 8.5.0, < 8.5.55 → fixed in 8.5.55

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.

Related

Alias · CVE (1)

  • CVE-2020-11996 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… vulnerability

Weakness · CWE (1)

  • CWE-400 Uncontrolled Resource Consumption weakness

References