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CVE-2025-49125— Apache Tomcat: Security constraint bypass for pre/post-resources

Quick assessment

Affected
Apache Software Foundation Apache Tomcat
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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存在安全漏洞，该漏洞源于使用PreResources或PostResources时可能绕过安全约束。以下版本受到影响： 11.0.0-M1版本至11.0.7版本、10.1.0-M1版本至10.1.41版本和9.0.0.M1版本至9.0.105版本。

AI Predicted 7.5 Difficulty: Easy EPSS 3.44% · P89

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-49125

Vulnerability Information
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Vulnerability Title
Apache Tomcat: Security constraint bypass for pre/post-resources
Source: CVE Program / CVE List V5
Vulnerability Description
Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat.  When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Tomcat 安全漏洞
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存在安全漏洞，该漏洞源于使用PreResources或PostResources时可能绕过安全约束。以下版本受到影响： 11.0.0-M1版本至11.0.7版本、10.1.0-M1版本至10.1.41版本和9.0.0.M1版本至9.0.105版本。
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

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Tomcat 11.0.0-M1 ~ 11.0.7 -

II. Public POCs for CVE-2025-49125

# POC Description Source Link Shenlong Link
1 Tomcat CVE https://github.com/gregk4sec/CVE-2025-49125 POC Details
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III. Intelligence Information for CVE-2025-49125

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Same Patch Batch · Apache Software Foundation · 2025-06-16 · 6 CVEs total

CVE-2025-48976 Apache Commons FileUpload, Apache Commons FileUpload: FileUpload DoS via part headers
CVE-2025-49124 Apache Tomcat: exe side-loading via icalcs.exe in Tomcat installer for Windows
CVE-2025-48988 Apache Tomcat: FileUpload large number of parts with headers DoS
CVE-2025-47869 Apache NuttX RTOS: examples/xmlrpc: Fix calls buffers size.
CVE-2025-47868 Apache NuttX RTOS: tools/bdf-converter.: tools/bdf-converter: Fix loop termination conditi

IV. Related Vulnerabilities

Same product: Apache Tomcat
Same vendor: Apache Software Foundation
Same weakness: CWE-288

V. Comments for CVE-2025-49125

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