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Tomcat CVE-2026-34486

| EUVD-2026-21056 HIGH
Missing Encryption of Sensitive Data (CWE-311)
2026-04-09 apache GHSA-69r9-qgr7-g2wj
Apache Information Disclosure Tomcat
7.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

4
Patch released
Apr 11, 2026 - 02:30 nvd
Patch available
EUVD ID Assigned
Apr 09, 2026 - 20:15 euvd
EUVD-2026-21056
Analysis Generated
Apr 09, 2026 - 20:15 vuln.today
CVE Published
Apr 09, 2026 - 19:35 nvd
HIGH 7.5

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 348 maven packages depend on org.apache.tomcat.embed:tomcat-embed-core (9 direct, 339 indirect)
  • 2 maven packages depend on org.apache.tomcat:tomcat-catalina (2 direct, 0 indirect)
  • 5 maven packages depend on org.apache.tomcat:tomcat-tribes (2 direct, 3 indirect)

Ecosystem-wide dependent count for version 11.0.20 and other introduced versions.

DescriptionNVD

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.

AnalysisAI

Encryption bypass in Apache Tomcat 11.0.20, 10.1.53, and 9.0.116 allows unauthenticated remote attackers to circumvent the EncryptInterceptor component, exposing sensitive data in cleartext. The vulnerability stems from an incomplete fix for CVE-2026-29146, enabling network-accessible adversaries to access confidential information without authentication. …

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RemediationAI

Within 24 hours: identify all Tomcat instances running versions 9.0.116, 10.1.53, or 11.0.20 across your infrastructure and document their deployment context and data sensitivity. Within 7 days: implement the compensating control detailed below and monitor network traffic for suspicious data access patterns. …

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CVE-2026-34486 vulnerability details – vuln.today
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