high7.5
CVE-2026-29146
Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.apache.tomcat:tomcat | >= 9.0.13, < 9.0.116 | 9.0.116 |
| maven | org.apache.tomcat:tomcat-tribes | >= 9.0.13, < 9.0.116 | 9.0.116 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Apache | Tomcat | from 7.0.100 through 7.0.109 from 8.5.38 through 8.5.100 from 9.0.13 before 9.0.116 from 10.0.0 before 10.1.53 from 11.0.0 before 11.0.20 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
- http://www.openwall.com/lists/oss-security/2026/04/09/24
- https://access.redhat.com/errata/RHSA-2026:20405
- https://access.redhat.com/errata/RHSA-2026:20406
- https://access.redhat.com/errata/RHSA-2026:36787
- https://access.redhat.com/errata/RHSA-2026:36788
- https://access.redhat.com/errata/RHSA-2026:36789
- https://access.redhat.com/errata/RHSA-2026:36790
- https://access.redhat.com/errata/RHSA-2026:36876
- https://access.redhat.com/errata/RHSA-2026:36877
- https://access.redhat.com/errata/RHSA-2026:36878
- https://access.redhat.com/errata/RHSA-2026:36879
- https://access.redhat.com/errata/RHSA-2026:37136
- https://access.redhat.com/errata/RHSA-2026:37137
- https://access.redhat.com/errata/RHSA-2026:38505
- https://access.redhat.com/errata/RHSA-2026:39188
- https://access.redhat.com/errata/RHSA-2026:39189
- 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://github.com/advisories/GHSA-h468-7pvh-8vr8
- https://nvd.nist.gov/vuln/detail/CVE-2026-29146
- https://github.com/apache/tomcat/commit/0112ed22abfccc3d54e44d91eb08804d0886acd1
- https://github.com/apache/tomcat/commit/607ebc0fa522bd9e8c05517baa2d179bbd1e659c
- https://github.com/apache/tomcat/commit/6d955cceca841f2eabf2d6c46b59a8c7e1cd6eaa