CVE-2026-43514 (Low) detected in tomcat-embed-core-9.0.37.jar

[mend-bolt-for-github]

CVE-2026-43514 - Low Severity Vulnerability

Vulnerable Library - tomcat-embed-core-9.0.37.jar

Core Tomcat implementation

Library home page: https://tomcat.apache.org/

Path to dependency file: /OPENAPI-REST-API/swagger-client/spring/pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/9.0.37/tomcat-embed-core-9.0.37.jar

Dependency Hierarchy:

• spring-boot-starter-web-2.1.16.RELEASE.jar (Root Library)
  • spring-boot-starter-tomcat-2.1.16.RELEASE.jar
    • ❌ tomcat-embed-core-9.0.37.jar (Vulnerable Library)

Found in HEAD commit: 1f70e2feccb7006c8d32cc7d4fe62f5cf5e5c34d

Found in base branch: master

Vulnerability Details

Observable Timing Discrepancy vulnerability when comparing AJP secret in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Older unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Publish Date: 2026-05-12

URL: CVE-2026-43514

CVSS 3 Score Details (3.7)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://lists.apache.org/thread/2k654v5cq123npfsd1b2kk1y30owqb1m

Release Date: 2026-05-12

Fix Resolution (org.apache.tomcat.embed:tomcat-embed-core): 9.0.118

Direct dependency fix Resolution (org.springframework.boot:spring-boot-starter-web): 3.0.0

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