7.3

CVE-2026-42498

Apache Tomcat: WebSocket authentication header exposure

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Apache ≫ Tomcat Version >= 7.0.0 <= 7.0.109
Apache ≫ Tomcat Version >= 8.5.0 <= 8.5.100
Apache ≫ Tomcat Version >= 9.0.0 < 9.0.118
Apache ≫ Tomcat Version >= 10.1.0 < 10.1.55
Apache ≫ Tomcat Version >= 11.0.0 < 11.0.22
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.6% 0.452
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.3 3.9 3.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

https://lists.apache.org/thread/n61zwf75jrv09rz90j4jssncm244bwdb
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http://www.openwall.com/lists/oss-security/2026/05/12/14
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