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CVE-2026-34486GHSA-69R9-QGR7-G2WJBIT-TOMCAT-2026-34486

Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 11.0.21, 10.1.54, 9.0.117
None on Exploit-DB, Metasploit or GitHub

Summary

Apache Tomcat, a widely used open-source Java web server, is affected. A flaw in a fix for an earlier issue allows the EncryptInterceptor protection to be bypassed, so sensitive data sent between clustered Tomcat nodes may not be encrypted as intended.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor. This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Apache Software Foundation Apache Tomcat

    11.0.20, 10.1.53, 9.0.116

  • org.apache.tomcat:tomcat-tribesMaven

    From 11.0.20 · fixed in 11.0.21

  • org.apache.tomcat:tomcat-tribesMaven

    From 10.1.53 · fixed in 10.1.54

  • org.apache.tomcat:tomcat-tribesMaven

    From 9.0.116 · fixed in 9.0.117

  • org.apache.tomcat:tomcatMaven

    From 11.0.20 · fixed in 11.0.21

  • org.apache.tomcat:tomcatMaven

    From 10.1.53 · fixed in 10.1.54

  • org.apache.tomcat:tomcatMaven

    From 9.0.116 · fixed in 9.0.117

References 1

lists.apache.org