Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor
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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat | >= 9.0.13, < 9.0.116, >= 10.1.50, < 10.1.53, >= 11.0.0-M1, < 11.0.20, >= 8.5.38, <= 8.5.100, >= 7.0.100, <= 7.0.109 | 9.0.116, 10.1.53, 11.0.20 |
| Java / Kotlin (Maven) | org.apache.tomcat:tomcat-tribes | >= 9.0.13, < 9.0.116, >= 10.1.50, < 10.1.53, >= 11.0.0-M1, < 11.0.20, >= 8.5.38, <= 8.5.100, >= 7.0.100, <= 7.0.109 | 9.0.116, 10.1.53, 11.0.20 |
References
- 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
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
- https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.53
- https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.20
- https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.116
- https://www.herodevs.com/vulnerability-directory/cve-2026-29146
- http://www.openwall.com/lists/oss-security/2026/04/09/24
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-209- Platform
- Java / Kotlin (Maven)
- Package
org.apache.tomcat:tomcat, org.apache.tomcat:tomcat-tribes- Disclosed
- 09.04.2026
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-h468-7pvh-8vr8 - CC BY 4.0
Vulnerability history: org.apache.tomcat:tomcat-tribes
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 04.2026 04.2026
- Without a fix
- 0
- Exploited in attacks
- 1
Severity breakdown
- High 3
Disclosures per year
- 2026: 3
-
Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor this entry
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