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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.

PUBLISHED Reserved 2026-03-30 | Published 2026-04-09 | Updated 2026-04-10 | Assigner apache

Problem types

CWE-532 Insertion of Sensitive Information into Log File

Product status

Default status
unaffected

11.0.0-M1 (semver)
affected

10.1.0-M1 (semver)
affected

9.0.13 (semver)
affected

Credits

Bartlomiej Dmitruk, striga.ai finder

References

www.openwall.com/lists/oss-security/2026/04/09/28

lists.apache.org/thread/4xpkwolpkrj8v5xzp5nyovtlqp3y850h vendor-advisory

cve.org (CVE-2026-34487)

nvd.nist.gov (CVE-2026-34487)

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