Vulnerability Details CVE-2026-86243
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 31.6%
CVSS Severity
CVSS v3 Score 7.5