Apache Tomcat Auth Bypass via Alternate resource path 9.0.105/10.1.41/11.0.7
CVE-2025-49125 Published on June 16, 2025
Apache Tomcat: Security constraint bypass for pre/post-resources
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.
Vulnerability Analysis
CVE-2025-49125 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Authentication Bypass Using an Alternate Path or Channel
A product requires authentication, but the product has an alternate path or channel that does not require authentication.
Products Associated with CVE-2025-49125
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Affected Versions
Apache Software Foundation Apache Tomcat:- Version 11.0.0-M1, <= 11.0.7 is affected.
- Version 10.1.0-M1, <= 10.1.41 is affected.
- Version 9.0.0.M1, <= 9.0.105 is affected.
- Version 8.5.0, <= 8.5.100 is affected.
- Version 8.0.0.RC1 and below 8.5.0 is unknown.
- Version 10.0.0-M1, <= 10.0.27 is unknown.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.