cve-2026-86247

HIGH CVSS 7.4 cvelistv5
Description

Race condition within a thread vulnerability in Apache Tomcat Native allowed client certificate verification requirements to be down-graded for some configurations. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Unsupported versions may also be affected. Users are recommended to upgrade to version 2.0.16 or 1.3.9, which fixes the issue.

Timeline
Published
2026-09-23 12:31 UTC
Last Modified
2026-09-23
CVSS Details
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
Affected Products
  • Apache Software Foundation Apache Tomcat Native
Weaknesses (CWE)
CWE-366
SSVC (CISA Stakeholder-Specific Vulnerability Categorization) CISA Coordinator v2.0.3
Exploitation
none
Automatable
no
Technical Impact
total
Decision timestamp
2026-09-23T15:30:32.467469Z

What is SSVC? — CISA's vulnerability-prioritisation framework using a decision tree rather than a single score.

References
Linked Vulnerabilities

No linked vulnerabilities found.

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