CVE-2026-34486

Summary

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.

Affected Software

Weaknesses

• CWE-311: CWE-311 Missing Encryption of Sensitive Data

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

CVE Program Container

Additional References

• https://www.vicarius.io/vsociety/posts/cve-2026-34486-detection-script-rce-on-apache-tomcat
• https://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcat

Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

Additional References

• https://access.redhat.com/security/cve/CVE-2026-34486
• https://bugzilla.redhat.com/show_bug.cgi?id=2457027
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.json

References

• https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly

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