Information Exposure Affecting tomcat-lib package, versions <1:9.0.120-1.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.65% (50th percentile)

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  • Snyk IDSNYK-ALMALINUX8-TOMCATLIB-19896974
  • published18 Sept 2026
  • disclosed17 Sept 2026

Introduced: 17 Sep 2026

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

How to fix?

Upgrade AlmaLinux:8 tomcat-lib 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-lib package and not the tomcat-lib package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 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