CVE-2026-24733 Affecting tomcat-servlet-4.0-api package, versions <1:9.0.120-1.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.51% (43rd percentile)

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  • Snyk IDSNYK-ALMALINUX8-TOMCATSERVLET40API-20152019
  • published26 Sept 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-24733  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 tomcat-servlet-4.0-api to version 1:9.0.120-1.el8_10 or higher.
This issue was patched in ALSA-2026:68677.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-servlet-4.0-api package and not the tomcat-servlet-4.0-api package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

Improper Input Validation vulnerability in Apache Tomcat.

Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a (specification invalid) HEAD request using HTTP/0.9.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.

Older, EOL versions are also affected.

Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.

CVSS Base Scores

version 3.1