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CVE-2026-34487— Apache Tomcat: Cloud membership for clustering component exposed the Kubernetes bearer token

EPSS 0.08% · P24
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I. Basic Information for CVE-2026-34487

Vulnerability Information
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Vulnerability Title
Apache Tomcat: Cloud membership for clustering component exposed the Kubernetes bearer token
Source: NVD (National Vulnerability Database)
Vulnerability Description
Insertion of Sensitive Information into Log File vulnerability in the cloud membership for clustering component of Apache Tomcat exposed the Kubernetes bearer token. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.13 through 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过日志文件的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Tomcat 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。用于实现对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 11.0.0-M1至11.0.20版本、10.1.0-M1至10.1.53版本和9.0.13至9.0.116版本存在日志信息泄露漏洞，该漏洞源于集群组件的云成员资格功能将敏感信息插入日志文件，可能暴露Kubernetes承载令牌。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Apache Software FoundationApache Tomcat 11.0.0-M1 ~ 11.0.20 -

II. Public POCs for CVE-2026-34487

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III. Intelligence Information for CVE-2026-34487

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Same Patch Batch · Apache Software Foundation · 2026-04-09 · 17 CVEs total

CVE-2026-34500Apache Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled
CVE-2026-34486Apache Tomcat: Fix for CVE-2026-29146 allowed bypass of EncryptInterceptor
CVE-2026-34483Apache Tomcat: Incomplete escaping of JSON access logs
CVE-2026-32990Apache Tomcat: Fix for CVE-2025-66614 is incomplete
CVE-2026-29146Apache Tomcat: EncryptInterceptor vulnerable to padding oracle attack by default
CVE-2026-29145Apache Tomcat, Apache Tomcat Native: OCSP checks sometimes soft-fail even when soft-fail i
CVE-2026-29129Apache Tomcat: TLS cipher order is not preserved
CVE-2026-25854Apache Tomcat: Occasionally open redirect
CVE-2026-24880Apache Tomcat: Request smuggling via invalid chunk extension
CVE-2026-40046Apache ActiveMQ, Apache ActiveMQ All, Apache ActiveMQ MQTT: Missing fix for CVE-2025-66168
CVE-2026-33005Apache OpenMeetings: Insufficient checks in FileWebService
CVE-2026-33266Apache OpenMeetings: Hardcoded Remember-Me Cookie Encryption Key and Salt
CVE-2026-34020Apache OpenMeetings: Login Credentials Passed via GET Query Parameters
CVE-2025-57735Apache Airflow: Airflow Logout Not Invalidating JWT
CVE-2025-62188Apache DolphinScheduler: Users can access sensitive information through the actuator endpo
CVE-2026-34538Apache Airflow: Authorization bypass in DagRun wait endpoint (XCom exposure)

IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-532

V. Comments for CVE-2026-34487

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