CVE-2026-29146
HIGH7.5EPSS 12.9%Apache Tomcat: Padding Oracle vulnerability in EncryptInterceptor
Published: 4/9/2026Modified: 4/28/2026
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.
Affected packages (6)
- Bitnami/tomcat>= 7.0.100, < 9.0.116, >= 10.0.0, < 10.1.53, >= 11.0.0, < 11.0.19
- Debian/tomcat10from 0
- Debian/tomcat11from 0
- Debian/tomcat9from 0, < 9.0.70-2
- Maven/org.apache.tomcat:tomcat>= 9.0.13, < 9.0.116
- Maven/org.apache.tomcat:tomcat-tribes>= 9.0.13, < 9.0.116
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References (12)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-29146
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2026-29146
- PATCHhttps://github.com/apache/tomcat
- WEBhttps://github.com/apache/tomcat/commit/0112ed22abfccc3d54e44d91eb08804d0886acd1
- WEBhttps://github.com/apache/tomcat/commit/607ebc0fa522bd9e8c05517baa2d179bbd1e659c
- WEBhttps://github.com/apache/tomcat/commit/6d955cceca841f2eabf2d6c46b59a8c7e1cd6eaa
- WEBhttps://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w
- WEBhttps://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.53
- WEBhttps://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.20
- WEBhttps://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.116
- WEBhttps://www.herodevs.com/vulnerability-directory/cve-2026-29146
- WEBhttp://www.openwall.com/lists/oss-security/2026/04/09/24