UpHeron
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Servers and applications

CVE-2026-34487

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.

Severity
High 7.5
Published
9 Apr 2026
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
9.0.117, 10.1.54, 11.0.21
Sources
NVD

Affected software

SoftwareAffected versions
Apache TomcatServers and applications · cpe:a:apache:tomcat
  • From 9.0.13 before 9.0.117
  • From 10.1.0 before 10.1.54
  • From 11.0.0 before 11.0.21

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-34487
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-34487