CVE-2026-34487

CVSS 7.5 · HIGH

EPSS p36

Lower risk — in the top 64% least-likely-to-be-exploited CVEs.

Patch available

Vendor advisory or patch linked

Published 4/9/2026 · updated 6/17/2026 · CWE-532

Summary

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 7.5 — HIGH

7.5 / 10

AV: Network
AC: Low complexity
PR: No privileges
UI: No user interaction
S: Scope unchanged
C: Confidentiality: High
I: Integrity: None
A: Availability: None

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

EPSS exploitation probability

0.4%

Percentile p36 — Lower risk — in the top 64% least-likely-to-be-exploited CVEs.

Affected products

1 vendor/product entries

Apache Tomcat≥ 9.0.13 and < 9.0.117

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Timeline

Apr 9, 2026 · Disclosed / published in NVD
Jun 17, 2026 · Intel last updated

Intel sources

Which upstream feeds returned data for this CVE, and when they were last fetched.

NVD· 40 days ago
CVE.org· no data
FIRST EPSS· 40 days ago
CISA KEV· no data
OSV· 40 days ago

References

Vendor & CERT advisories2

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