CVE-2024-24549

CVE-2024-24549: Apache Tomcat: HTTP/2 header handling DoS

Vendor Apache Software Foundation
Product Apache Tomcat
Weakness CWE-20 · Input validation
Published March 13, 2024
Last update October 29, 2025

CVSS base score

What the vulnerability does

Description

Denial of Service due to improper input validation vulnerability for HTTP/2 requests in Apache Tomcat. When processing an HTTP/2 request, if the request exceeded any of the configured limits for headers, the associated HTTP/2 stream was not reset until after all of the headers had been processed.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.

Key dates

Disclosure timeline

March 13, 2024 CVE published
October 29, 2025 Record updated