CVE-2026-29146
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.
- Score
- CVSS 3.1 7.5 High
- Status
- Modified - security@apache.org
- Published
- 2026-04-09
- Last modified
- 2026-10-26
- Weaknesses
- CWE-1240, CWE-209, CWE-642
Affected products
- Tomcat (Apache)
- Apache Tomcat (Apache Software Foundation)
- Enterprise Linux (Redhat)
- Enterprise Linux Eus (Redhat)
- Jboss Enterprise Web Server (Redhat)
- Rhel E4s (Redhat)
- Rhel Els (Redhat)
- Rhel Eus (Redhat)
- Rhel Tus (Redhat)
References
- https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
- http://www.openwall.com/lists/oss-security/2026/04/09/24
- https://access.redhat.com/security/cve/CVE-2026-29146
- https://bugzilla.redhat.com/show_bug.cgi?id=2457020
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29146.json
- https://access.redhat.com/errata/RHSA-2026:20405
- https://access.redhat.com/errata/RHSA-2026:39188
- https://access.redhat.com/errata/RHSA-2026:38505
- https://access.redhat.com/errata/RHSA-2026:36787
- https://access.redhat.com/errata/RHSA-2026:36789
- https://access.redhat.com/errata/RHSA-2026:36788
- https://access.redhat.com/errata/RHSA-2026:36790
- https://access.redhat.com/errata/RHSA-2026:37137
- https://access.redhat.com/errata/RHSA-2026:37136
- https://access.redhat.com/errata/RHSA-2026:36878
- https://access.redhat.com/errata/RHSA-2026:36876
- https://access.redhat.com/errata/RHSA-2026:36877
- https://access.redhat.com/errata/RHSA-2026:36879
- https://access.redhat.com/errata/RHSA-2026:20406
- https://access.redhat.com/errata/RHSA-2026:39189