Detections
Analytics
CVE-2026-86247
high
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.
References
https://lists.apache.org/thread/obsson6zhvfg0wsp2bx602l61ltj87r1