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CVE-2026-42498

Опубликовано: 12 мая 2026
Источник: redhat
CVSS3: 6.5

Описание

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.

A flaw was found in Apache Tomcat. During WebSocket authentication, the HTTP Authentication Header can be exposed to unexpected hosts. This vulnerability leads to information disclosure, potentially allowing an attacker to gain access to sensitive authentication credentials.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Certificate System 10redhat-pki:10/jssUnder investigation
Red Hat Enterprise Linux 10jssOut of support scope
Red Hat Enterprise Linux 10mod_proxy_clusterFix deferred
Red Hat Enterprise Linux 9jssFix deferred
Red Hat Enterprise Linux 9mod_proxy_clusterFix deferred
Red Hat Fuse 7tomcat-coyoteOut of support scope
Red Hat JBoss Core Servicesjbcs-httpd24-mod_cluster-nativeNot affected
Red Hat JBoss Core Servicesjbcs-httpd24-mod_proxy_clusterNot affected
Red Hat JBoss Enterprise Application Platform Expansion Packtomcat-coyoteAffected
Red Hat JBoss Web Server 5jws5-mod_clusterOut of support scope

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-201
https://bugzilla.redhat.com/show_bug.cgi?id=2476516tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication.

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 7.3
ubuntu
3 месяца назад

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.

CVSS3: 7.3
nvd
3 месяца назад

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.

CVSS3: 7.3
debian
3 месяца назад

Exposure of HTTP Authentication Header to unexpected hosts during WebS ...

CVSS3: 7.3
github
3 месяца назад

Apache Tomcat - WebSocket authentication header exposure

CVSS3: 7.3
fstec
3 месяца назад

Уязвимость сервера приложений Apache Tomcat, связанная с отсутствием защиты служебных данных, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

6.5 Medium

CVSS3