CVE-2026-34486 Apache Tomcat - Fix for CVE-2026-29146 allowed bypass of
EncryptInterceptor
Severity: Important
Vendor: The Apache Software Foundation
Versions Affected:
Apache Tomcat 11.0.20
Apache Tomcat 10.1.53
Apache Tomcat 9.0.116
Description:
An error in the fix for CVE-2026-29146 allowed the EncryptInterceptor to
be bypassed.
Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- Upgrade to Apache Tomcat 11.0.21 or later
- Upgrade to Apache Tomcat 10.1.54 or later
- Upgrade to Apache Tomcat 9.0.117 or later
Credit:
This issue was identified by Bartlomiej Dmitruk, striga.ai
History:
2026-04-09 Original advisory
References:
[1] https://tomcat.apache.org/security-11.html
[2] https://tomcat.apache.org/security-10.html
[3] https://tomcat.apache.org/security-9.html
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