CVE-2026-43515
CriticalSummary
Improper Authorization vulnerability occurs when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.
Risk Assessment
The organization may be exposed to unauthorized access to resources, potentially leading to data leaks or other serious security incidents.
Recommendation
It is recommended to upgrade to version 11.0.22, 10.1.55, or 9.0.118, which fix the issue.
Original NVD description (English source)
Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

