A vulnerability was found in hibernate-validator version 6.1.2.Final, where the method 'isValid' in the class org.hibernate.validator.internal.constraintvalidators.hv.SafeHtmlValidator can by bypassed by omitting the tag end (less than sign). Browsers typically still render the invalid html which leads to attacks like HTML injection and Cross-Site-Scripting.
Statement: hibernate-validator is packaged with Red Hat OpenStack Platform 13.0's OpenDaylight (ODL). However, because ODL is technical preview in this version and the flaw is moderate, Red Hat will not be releasing a fix for the OpenStack package at this time. Supported versions of Satellite 6 embed vulnerable versions of hibernate-validator inside the candlepin component. However, the vulnerable functionality, SafeHtmlValidator, is not in use and therefore it is not possible to exploit it.