CVE-2026-55956
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk30th percentile — higher than 30% of all known CVEs
Summary
An improper authorization vulnerability in Apache Tomcat causes security constraints for the default servlet to ignore any configured HTTP method or method omission. This affects Tomcat versions from 7.0.0 through 11.0.22.
Risk Assessment
An attacker may bypass access restrictions to resources served by the default servlet, potentially leading to unauthorized access to application data or functionality.
Recommendation
Upgrade Apache Tomcat to version 11.0.23, 10.1.56, or 9.0.119, which contain the fix.
Original NVD description (English source)
Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other versions that have reached end of support may also be affected. Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.