IBM WebSphere Portal 6.1.0.x through 6.1.0.6 CF27, 6.1.5.x through 6.1.5.3 CF27, 7.0.x through 7.0.0.2 CF29, 8.0.x before 8.0.0.1 CF17, and 8.5.0 before CF06 allows remote attackers to cause a denial of service (CPU and memory consumption) via a crafted request.