# CVE-2026-29146: Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default

> CVE-2026-29146: Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default. CVSS 7.5 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-29146
Last updated: 2026-08-17T12:05:18Z

- Published: 2026-04-09 19:21 UTC · Updated: 2026-08-17 12:05 UTC · Assigner: apache
- CVSS: 7.5 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS: 8.9%, 95th percentile (scored 2026-10-25)
- CISA KEV: no

## 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 vendors and products

- Apache Software Foundation: Apache Tomcat
- Red Hat: Red Hat Enterprise Linux 10
- Red Hat: Red Hat Enterprise Linux 10.0 Extended Update Support
- Red Hat: Red Hat Enterprise Linux 6
- Red Hat: Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat: Red Hat Enterprise Linux 8
- Red Hat: Red Hat Enterprise Linux 8.8 Telecommunications Update Service
- Red Hat: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat: Red Hat Enterprise Linux 9
- Red Hat: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- Red Hat: Red Hat Enterprise Linux 9.6 Extended Update Support
- Red Hat: Red Hat JBoss Web Server 5
- Red Hat: Red Hat JBoss Web Server 6.2.3
- Red Hat: Red Hat JBoss Web Server 6.2 on RHEL 10
- Red Hat: Red Hat JBoss Web Server 6.2 on RHEL 8
- Red Hat: Red Hat JBoss Web Server 6.2 on RHEL 9
- Red Hat: Red Hat JBoss Web Server 7.0.0
- Red Hat: Red Hat JBoss Web Server 7.0 on RHEL 10
- Red Hat: Red Hat JBoss Web Server 7.0 on RHEL 8
- Red Hat: Red Hat JBoss Web Server 7.0 on RHEL 9

## Tracked companies

- [Confluence](https://rewindex.com/company/confluence.md)
- [Jira](https://rewindex.com/company/jira.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-29146)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-29146)
- [https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w](https://lists.apache.org/thread/lzt04z2pb3dc5tk85obn80xygw3z1p0w)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-29146 · Markdown: https://rewindex.com/cve/CVE-2026-29146.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-29146 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:11:21.309Z