NVD Vulnerability Detail
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CVE-2026-42498
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.

Publication Date May 13, 2026, 1:16 a.m.
Registration Date May 13, 2026, 4:12 a.m.
Last Update May 13, 2026, 3:17 a.m.
Related information, measures and tools
Common Vulnerabilities List