Information Exposure Through Log Files Affecting tomcat9-servlet-4.0-api package, versions <1:9.0.117-2.el10_2.alma.1


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.45% (37th percentile)

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  • Snyk IDSNYK-ALMALINUX10-TOMCAT9SERVLET40API-18609939
  • published11 Aug 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

CVE-2026-34487  (opens in a new tab)
CWE-532  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 tomcat9-servlet-4.0-api to version 1:9.0.117-2.el10_2.alma.1 or higher.
This issue was patched in ALSA-2026:36790.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat9-servlet-4.0-api package and not the tomcat9-servlet-4.0-api package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

CVSS Base Scores

version 3.1