vulnerability
Apache Tomcat: Important: EncryptInterceptor vulnerable to padding oracle attack by default (CVE-2026-29146)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:C/I:N/A:N) | Apr 10, 2026 | Apr 10, 2026 | Apr 23, 2026 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:C/I:N/A:N)
Published
Apr 10, 2026
Added
Apr 10, 2026
Modified
Apr 23, 2026
Description
Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.
Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.
Solutions
apache-tomcat-upgrade-10_1_53apache-tomcat-upgrade-10_1_54apache-tomcat-upgrade-11_0_20apache-tomcat-upgrade-11_0_21apache-tomcat-upgrade-9_0_116apache-tomcat-upgrade-9_0_117
Rapid7 Labs
2026 Global Threat Landscape Report
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