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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-86243

Apache Tomcat Native: DoS via TLS handshake

Description

Buffer over-read vulnerability in Apache Tomcat Native during the TLS handshake permits a malicious user to trigger a DoS via a JVM crash. This issue affects Apache Tomcat Native: from 2.0.0 through 2.0.15, from 1.3.0 through 1.3.8. Earlier, unsupported versions may also be affected. Users are recommended to upgrade to version 1.3.9 or 2.0.16, which fix the issue.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Tomcat Native

Default version status: unaffected

  • 2.0.0 to ≤ 2.0.15affected
  • 1.3.0 to ≤ 1.3.8affected

References