CVE-2026-86247 (GCVE-0-2026-86247)

Vulnerability from cvelistv5 – Published: 2026-09-23 12:31 – Updated: 2026-09-23 18:10
VLAI
Title
Apache Tomcat Native: Client certificate requirements can be down-graded
Summary
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.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 15:30 UTC
CWE
  • CWE-366 - Race condition within a thread
Assigner
References
Impacted products
Vendor Product Version CPE status
Apache Software Foundation Apache Tomcat Native Affected: 2.0.0 , ≤ 2.0.15 (semver)
Affected: 1.3.0 , ≤ 1.3.8 (semver)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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