CVE-2026-42498

描述

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0 through 11.0.21, from 10.1.0 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.

如何修補 CVE-2026-42498

要修補 CVE-2026-42498,請將受影響套件升級到下列已修補版本。

• —升級至 10.1.55 或更新版本
• —升級至 10.1.55-1~deb12u1 或更新版本
• —升級至 11.0.22-1~deb13u1 或更新版本
• —升級至 9.0.118-0+deb11u1 或更新版本
• —升級至 9.0.118 或更新版本
• —升級至 9.0.118 或更新版本
• —升級至 9.0.118 或更新版本

CVE-2026-42498 正在被利用嗎?

低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。

受影響套件(7)

• >= 10.0.0, < 10.1.55, >= 11.0.0, < 11.0.22, >= 9.0.0, < 9.0.118
• from 0, < 10.1.55-1~deb12u1
• from 0, < 11.0.22-1~deb13u1
• from 0, < 9.0.118-0+deb11u1
• from 0, < 9.0.118
• from 0, < 9.0.118
• from 0, < 9.0.118

CVSS 分數

參考連結(11)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-42498
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2026-42498
• PATCHgithub.com/apache/tomcat
• WEBwww.openwall.com/lists/oss-security/2026/05/12/14
• WEB