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Vulnerability record · CVE-2026-29146 · published 9 April 2026

CVE-2026-29146: Apache tomcat error message information leak vulnerability

Apache · Tomcat

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.

7.5 CVSS 3.1 High EPSS 2.9% · top 13.7% CWE-209 · Error message information leakCWE-642 · CWE-642
7.5CVSS 3.1 base score
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References
4 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2026/04/09/24 Mailing ListThird Party Advisory
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

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Source: NIST National Vulnerability Database (record CVE-2026-29146), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.