# CVE-2026-34486

## Summary

- **CVE ID:** CVE-2026-34486
- **Severity:** UNKNOWN
- **CVSS Score:** 8.06 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-311
- **Published:** Apr 9, 2026
- **Last Modified:** Aug 10, 2026

## Description

Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor.

This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116.

Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

## Affected Products

- Apache Software Foundation — Apache Tomcat (11.0.20)
- Apache Software Foundation — Apache Tomcat (10.1.53)
- Apache Software Foundation — Apache Tomcat (9.0.116)

## References

- [CNA](https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly)
- [CVE](https://www.vicarius.io/vsociety/posts/cve-2026-34486-detection-script-rce-on-apache-tomcat)
- [CVE](https://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcat)
- [redhat-SADP](https://access.redhat.com/security/cve/CVE-2026-34486)
- [redhat-SADP](https://bugzilla.redhat.com/show_bug.cgi?id=2457027)
- [redhat-SADP](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.json)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36787)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36789)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36788)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36790)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:37137)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:37136)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36878)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36876)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36877)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:36879)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:38505)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:39188)
- [redhat-SADP](https://access.redhat.com/errata/RHSA-2026:39189)
- [CISA-ADP](https://socradar.io/blog/snowlight-government-chinese-campaign/)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34486)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 98.62%
- **EPSS Percentile:** 99.9

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Aug 4, 2026
- **Due Date:** Aug 7, 2026

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._