All vulnerabilities
CVE-2026-34486

Apache Tomcat Missing Encryption of Sensitive Data Vulnerability

Apache TomcatWeb servers
Open in ThreatlineRecord JSON
CVSS
7.5High
ExploitationExploited in the wildAdded to KEV 4 Aug 2026CISA KEV
Exploit odds (EPSS)6.56%Chance of exploitation activity in the next 30 days, higher than 93% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline7 Aug 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply 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. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 9 Apr 2026, 19:35 UTCPublishedCVE List
  2. 4 Aug 2026Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Scanner templateApache Tomcat Tribes EncryptInterceptor Bypass - Remote Code ExecutionNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor. This vulnerability can be chained with CVE‑2025‑24813.

Text from CVE List

Affected versions 3

  • Apache Tomcataffected: 11.0.20CVE List
  • Apache Tomcataffected: 10.1.53CVE List
  • Apache Tomcataffected: 9.0.116CVE List

References 22