{"id":86498,"date":"2026-02-18T21:16:26","date_gmt":"2026-02-18T21:16:26","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-49125-authentication-bypass-vulnerability-in-apache-tomcat","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-49125-authentication-bypass-vulnerability-in-apache-tomcat\/","title":{"rendered":"CVE-2025-49125: Authentication Bypass Vulnerability in Apache Tomcat<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The CVE-2025-49125 vulnerability is a critical security flaw identified in Apache Tomcat, a widely used web server software. The vulnerability allows potential attackers to bypass authentication and gain unauthorized access to protected resources. This flaw can lead to significant security breaches, potentially compromising system integrity or resulting in data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-49125
\nSeverity: High (7.5 CVSS score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Apache Tomcat | 11.0.0-M1 through 11.0.7
\nApache Tomcat | 10.1.0-M1 through 10.1.41
\nApache Tomcat | 9.0.0.M1 through 9.0.105<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability lies in the ability to access PreResources or PostResources mounted in areas other than the root of the web application via an unexpected path. This unexpected path may not be protected by the same security constraints as the expected path, allowing bypassing of these security constraints.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

The following pseudocode illustrates a potential exploit of this vulnerability:<\/p>\n

GET \/unprotected-path\/resource HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"access_request\": \"resource_data\" }<\/code><\/pre>\n
In this example, an attacker sends a GET request to an unprotected path (unlike the expected secure path), potentially gaining access to sensitive resources. It is worth noting that the actual exploit would depend on the specific configurations and security measures in place on the target server.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-49125 vulnerability is a critical security flaw identified in Apache Tomcat, a widely used web server software. The vulnerability allows potential attackers to bypass authentication and gain unauthorized access to protected resources. This flaw can lead to significant security breaches, potentially compromising system integrity or resulting in data leakage. Vulnerability Summary CVE ID: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86498","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t