cvedb.io
CVE-2026-42498
HIGH · CVSS 7.3
EPSS exploitation probability: 0%
Published 2026-05-12T16:16:17.800 · Last modified 2026-06-17T10:47:56.043

Summary

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118, which fix the issue.

Affected products

apache — tomcat

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.