Review reviewHigh

CVE-2026-29146

Apache Software Foundation Apache Tomcat, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support

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: 7.5
EPSS: 6.26%
CISA KEV: Not listed
Published: 2026.04.10

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability6.26%

Technical severityCVSS 7.5

Vulnerability overview

Affected product and versions

Product: Apache Software Foundation Apache Tomcat, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support
Affected versions: >= 11.0.0-M1 <= 11.0.18, >= 10.0.0-M1 <= 10.1.52, >= 9.0.13 <= 9.0.115, >= 8.5.38 <= 8.5.100, >= 7.0.100 <= 7.0.109, >= 9.0.13 < 9.0.116, >= 10.0.0 < 10.1.53, >= 11.0.0 < 11.0.20
Fixed versions: 9.0.116, 10.1.53, 11.0.20

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Apache Software Foundation Apache Tomcat, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 10.0 Extended Update Support and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-1240, CWE-209, CWE-642