UBUNTU-CVE-2026-24733

Improper Input Validation vulnerability in Apache Tomcat. Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a specification inval...

Improper Authorization

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Improper Authorization in prepareRequestProtocol, which accepts HTTP/0.9 requests other than GET. A security constraint configured to allow HEAD requests to a UR...

Fixed in Apache Tomcat 10.1.50

Low: Security constraint bypass CVE-2026-24733 Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a specification invalid HEAD...