CVE-2012-0022: Apache Tomcat

Medium severity, CVSS 5.0. EPSS: 10.5% chance of exploitation in the next 30 days.

Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.34, and 7.x before 7.0.23 uses an inefficient approach for handling parameters, which allows remote attackers to cause a denial of service (CPU consumption) via a request that contains many parameters and parameter values, a different vulnerability than CVE-2011-4858.

Affected products

• Apache Tomcat: version 5.5.0 only; version 5.5.1 only; version 5.5.2 only; version 5.5.3 only; version 5.5.4 only; version 5.5.5 only; …

Published 2012-01-19. Last modified 2026-06-16.