CVE-2026-34487

Apache Tomcat: Cloud membership for clustering component exposed the Kubernetes bearer token

CVSS 7.5 HIGHEPSS 0.4%CWE-532

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

09 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Apache Software Foundation · Apache Tomcat

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References

https://lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h http://www.openwall.com/lists/oss-security/2026/04/09/28