CVE-2026-34486
HIGHCVSS 7.5/10Actively ExploitedEPSS 98.62%
Last modified
CVE-2026-34486 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 98.62% chance of exploitation in the next 30 days.
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.
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Tomcat | 9.0.116 |
| Apache | Tomcat | 10.1.53 |
| Apache | Tomcat | 11.0.20 |
| Redhat | Jboss Web Server | 7.0.0 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
| Redhat | Enterprise Linux | 10.0 |
| Redhat | Enterprise Linux Els | 7.0 |
| Redhat | Enterprise Linux Eus | 10.0 |
| Redhat | Enterprise Linux Tus | 8.8 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 8.8 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 9.2 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 9.4 |
| Redhat | Enterprise Linux Update Services For Sap Solutions | 9.6 |
References
- https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrlyMailing List, Vendor Advisory
- https://www.vicarius.io/vsociety/posts/cve-2026-34486-mitigation-script-rce-on-apache-tomcatMitigation, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36787Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36788Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36789Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36790Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36876Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36877Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36878Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:36879Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:37136Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:37137Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:38505Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:39188Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:39189Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-34486Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2457027Issue Tracking, Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34486.jsonThird Party Advisory
- https://socradar.io/blog/snowlight-government-chinese-campaign/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34486US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-34486?
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.
How severe is CVE-2026-34486?
CVE-2026-34486 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 98.62% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2026-34486?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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