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CVE-2026-25854— Apache Tomcat: Occasionally open redirect

AI Predicted 5.3 Difficulty: Easy EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1566.001 · Spearphishing Attachment
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I. Basic Information for CVE-2026-25854

Vulnerability Information
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Vulnerability Title
Apache Tomcat: Occasionally open redirect
Source: NVD (National Vulnerability Database)
Vulnerability Description
Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Tomcat 输入验证错误漏洞
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 11.0.18及之前版本、10.1.52及之前版本、9.0.115及之前版本和8.5.100及之前版本存在输入验证错误漏洞，该漏洞源于LoadBalancerDrainingValve存在偶尔的URL重定向问题，可能导致开放重定向攻击。
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 ~ 11.0.18 -

II. Public POCs for CVE-2026-25854

#POC DescriptionSource LinkShenlong Link
1Released by original Authorhttps://github.com/gregk4sec/CVE-2026-25854POC Details
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III. Intelligence Information for CVE-2026-25854

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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-2026-34487Apache Tomcat: Cloud membership for clustering component exposed the Kubernetes bearer tok
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-2026-24880Apache 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-601

V. Comments for CVE-2026-25854

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