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CVE-2026-34486

HIGH
Actively Exploited

Apache Tomcat Missing Encryption of Sensitive Data vulnerability

Published April 9, 2026Updated June 8, 2026Source: osv

What Should I Do?

Patch Immediately

This vulnerability is confirmed under active exploitation (CISA KEV). Patch within 24-48 hours if possible.

Summary

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.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.apache.tomcat:tomcat-tribes to 11.0.21 or later
<!-- Update pom.xml dependency version to 11.0.21 for org.apache.tomcat:tomcat-tribes -->
Maven
Update org.apache.tomcat:tomcat to 10.1.54 or later
<!-- Update pom.xml dependency version to 10.1.54 for org.apache.tomcat:tomcat -->
Maven
Update org.apache.tomcat:tomcat to 9.0.117 or later
<!-- Update pom.xml dependency version to 9.0.117 for org.apache.tomcat:tomcat -->
Maven
Update org.apache.tomcat:tomcat to 11.0.21 or later
<!-- Update pom.xml dependency version to 11.0.21 for org.apache.tomcat:tomcat -->
Maven
Update org.apache.tomcat:tomcat-tribes to 10.1.54 or later
<!-- Update pom.xml dependency version to 10.1.54 for org.apache.tomcat:tomcat-tribes -->
Maven
Update org.apache.tomcat:tomcat-tribes to 9.0.117 or later
<!-- Update pom.xml dependency version to 9.0.117 for org.apache.tomcat:tomcat-tribes -->

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (6)

PackageEcosystemAffectedFixed In
org.apache.tomcat:tomcat-tribes
maven
11.0.2011.0.21
org.apache.tomcat:tomcat
maven
10.1.5310.1.54
org.apache.tomcat:tomcat
maven
9.0.1169.0.117
org.apache.tomcat:tomcat
maven
11.0.2011.0.21
org.apache.tomcat:tomcat-tribes
maven
10.1.5310.1.54
org.apache.tomcat:tomcat-tribes
maven
9.0.1169.0.117

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-311
    Missing Encryption of Sensitive DataMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Frequently Asked Questions

What is CVE-2026-34486?
Apache Tomcat Missing Encryption of Sensitive Data vulnerability This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2026-34486?
CVE-2026-34486 affects org.apache.tomcat:tomcat-tribes and org.apache.tomcat:tomcat. This vulnerability is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, meaning it is being actively exploited in the wild. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2026-34486 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Known Exploited Vulnerability

This vulnerability is in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating active exploitation in the wild.

Remediation deadline: August 7, 2026

Also Known As

GHSA-69r9-qgr7-g2wj
BIT-tomcat-2026-34486

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