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Message-ID: <a0f1d0ae-afc7-47f2-b005-661178871229@apache.org>
Date: Thu, 9 Apr 2026 20:51:14 +0100
From: Mark Thomas <markt@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2026-34487: Apache Tomcat: Cloud membership for clustering
component exposed the Kubernetes bearer token
Severity: low
Affected versions:
- Apache Tomcat 11.0.0-M1 through 11.0.20
- Apache Tomcat 10.1.0-M1 through 10.1.53
- Apache Tomcat 9.0.13 through 9.0.116
Description:
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.
Credit:
Bartlomiej Dmitruk, striga.ai (finder)
References:
https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h
https://tomcat.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-34487
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