CVE-2026-75973— Apache Tomcat 跨上下文认证混淆漏洞
一分钟漏洞结论
影响对象
Apache Software Foundation Apache Tomcat
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Improper Authentication vulnerability in Apache Tomcat. When Jakarta Authentication was configured with SimpleAuthConfigProvider as the default provider and multiple web application used that provider, the realm for the first web application to authenticate a
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一、 漏洞 CVE-2026-75973 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Apache Tomcat: Cross-context authentication mix-up with Jakarta Authentication configured
来源: CVE Program / CVE List V5
Vulnerability Description
Improper Authentication vulnerability in Apache Tomcat. When Jakarta Authentication was configured with SimpleAuthConfigProvider as the default provider and multiple web application used that provider, the realm for the first web application to authenticate a request would be used for all web applications.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.25, from 10.1.0-M1 through 10.1.59, from 9.0.0.M4 through 9.0.121.
The following versions were EOL at the time the CVE was created but are
known to be affected: from 8.5.0 through 8.5.100. Other unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.26, 10.1.60, 9.0.122, which fixes the issue.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 ~ 11.0.25 | - |
|
二、漏洞 CVE-2026-75973 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-75973 邮件列表归档 (1)
同批安全公告 · Apache Software Foundation · 2026-09-23 · 共 25 条
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| CVE-2026-91852 | Apache Sling XSSImpl 跨站脚本漏洞 | |
| CVE-2026-96443 | Apache Doris JDBC驱动远程代码执行漏洞 | |
| CVE-2026-91928 | Apache Sling XSS：消毒器绕过等漏洞 | |
| CVE-2026-94251 | Apache Sling 内容处置过滤器漏洞 | |
| CVE-2026-94243 | Apache Sling Security RefererFilter 弱证据绕过漏洞 | |
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| CVE-2026-86247 | Apache Tomcat Native 客户端证书要求降级漏洞 | |
| CVE-2026-77756 | Tomcat 1.0请求处理传输编码漏洞 | |
| CVE-2026-77762 | Tomcat 循环请求池Hpack陈旧漏洞 | |
| CVE-2026-77791 | Apache Tomcat WebSocket关闭时DoS漏洞 | |
| CVE-2026-78383 | Apache Tomcat AJP 拒绝服务漏洞 | |
| CVE-2026-78437 | Apache Tomcat 2.x HTTP/2 拒绝服务漏洞 | |
| CVE-2026-79677 | Apache Tomcat WebSocket 拒绝服务漏洞 | |
| CVE-2026-86248 | Apache Tomcat OCSP校验不完整漏洞 |
显示前 20 条，共 25 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-75973
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