CVE-2026-34486
Apache Tomcat Missing Encryption of Sensitive Data Vulnerability
IN CISA KEV
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.
- Vendor
- Apache
- Product
- Tomcat
- CVSS 3.1
- 7.5 (high), scored by 134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 3.1
- 7.5 (high), scored by 0b0ca135-0b70-47e7-9f44-1890c2a1c46cCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Published
- 2026-04-09
- NVD modified
- 2026-09-21
- NVD status
- Analyzed
CISA KEV
- Date added
- 2026-08-04
- Due date
- 2026-08-07
- Ransomware use
- Unknown
- Required action
- Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
EPSS
6.56% chance of exploitation in the next 30 days (percentile 93rd)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- lists.apache.org (Mailing List, Vendor Advisory)
- www.vicarius.io (Third Party Advisory)
- www.vicarius.io (Mitigation, Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
- access.redhat.com (Third Party Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.