Advisory severityHigh7.5Apache Software Foundation

High [CVE-2026-29146] Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default

This high-severity Apache Software Foundation advisory covers CVE-2026-29146 affecting Apache Tomcat.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-29146 Source published Apr 9, 2026Source updated Aug 17, 2026

VulniPulse record published Jul 11, 2026Record updated Aug 17, 2026

CVE-2026-29146

Affected products & platforms

Apache Software FoundationTomcat

Open source advisory

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Summary

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 versions

Apache Tomcat 11.0.0-M1 through 11.0.18
Apache Tomcat 10.0.0-M1 through 10.1.52
Apache Tomcat 9.0.13 through 9.0.115
Apache Tomcat 8.5.38 through 8.5.100
Apache Tomcat 7.0.100 through 7.0.109

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Fixed versions

11.0.19
10.1.53
9.0.116

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.

Official advisory · high-confidence parse· fetched 3 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program
NVD discovery recordNVD
Independent discovery and scoring cross-reference. Vendor remediation guidance takes precedence. Discovered from the machine-readable feed https://services.nvd.nist.gov/rest/json/cves/2.0; this link opens the NVD record for CVE-2026-29146 instead of the raw feed document.
NIST National Vulnerability Database

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-29146NVD CVE.org MITRE

Official resources

Apache Tomcat security bulletins (per major version) (target: 11.0.19 / 10.1.53 / 9.0.116)
Official documentation
This advisory names 11.0.19 / 10.1.53 / 9.0.116 as the first fixed releases — official upgrade documentation for Apache Tomcat security bulletins (per major version).
ASF Security — reporting & CVE process
Official documentation
The Apache Software Foundation's official security page: how ASF CVEs are published and where each project's advisories live.
Apache project downloads (fixed releases)
Official documentation
Official ASF download tree — fetch the fixed release named in this advisory from the project's directory.

Discussion(0)

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