Information Exposure Affecting tomcat package, versions <1:9.0.120-2.el9_8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.65% (49th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX9-TOMCAT-19943944
  • published19 Sept 2026
  • disclosed21 Sept 2026

Introduced: 19 Sep 2026

NewCVE-2026-42498  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 tomcat to version 1:9.0.120-2.el9_8 or higher.
This issue was patched in ALSA-2026:68660.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat package and not the tomcat package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through 7.0.109.

Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118, which fix the issue.

CVSS Base Scores

version 3.1