Skip to content
fr Sign in
Not rated Exploited

CVE-2026-34486 Apache Tomcat Missing Encryption of Sensitive Data Vulnerability

Active exploitation observed

· CISA KEV catalogue
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.
Ransomware campaigns Not observed so far
Weakness CWE-311

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 and versions

Product Affected versions Fixed in
Apache Tomcat 11.0.20 No fix stated
Apache Tomcat 10.1.53 No fix stated
Apache Tomcat 9.0.116 No fix stated
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat JBoss Web Server 5 Versions not published
Show the 23 other branches
Product Affected versions Fixed in
Red Hat JBoss Web Server 6 Versions not published
Red Hat Enterprise Linux AppStream EUS (v. 10.0) Versions not published
Red Hat Enterprise Linux AppStream (v. 10) Versions not published
Red Hat Enterprise Linux AppStream (v. 8) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.8.8) Versions not published
Red Hat Enterprise Linux AppStream TUS (v.8.8) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.9.2) Versions not published
Red Hat Enterprise Linux AppStream E4S (v.9.4) Versions not published
Red Hat Enterprise Linux AppStream EUS (v.9.6) Versions not published
Red Hat Enterprise Linux AppStream (v. 9) Versions not published
Red Hat Enterprise Linux Server (v. 7 ELS) Versions not published
Red Hat Enterprise Linux Server Optional (v. 7 ELS) Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat JBoss Web Server 7.0.0 Versions not published
Red Hat JBoss Web Server 7.0 on RHEL 10 Versions not published
Red Hat JBoss Web Server 7.0 on RHEL 8 Versions not published
Red Hat JBoss Web Server 7.0 on RHEL 9 Versions not published

References

Timeline

  1. Published
  2. Added to the KEV catalogue
  3. Last modified

Other CVEs of Apache Tomcat

The 141 CVEs of Apache Tomcat →
CVE-2026-103119 Buffer under-read vulnerability in Apache Tomcat meant that a large non-blocking write could result in the response body… Not rated CVE-2026-101356 Incorrect object recycling and re-use vulnerability in Apache Tomcat affecting HTTP/2 processing of asynchronous… Not rated CVE-2026-101296 A missing critical step in authentication vulnerability in Apache Tomcat when the JNDI realm was configured with with… Not rated CVE-2026-93446 Incomplete cleanup vulnerability in Apache Tomcat could cause TLS 1.3 connections to fail intermittently Not rated
Track this CVE