CVE-2026-86247

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.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Tomcat Native2.0.0 <= 2.0.15affected
Apache Software FoundationApache Tomcat Native1.3.0 <= 1.3.8affected

Weaknesses

  • CWE-366: CWE-366 Race condition within a thread

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

CVE Program Container

Additional References

References