GHSA-jv4x-j47q-6qvp: htmlcleaner vulnerable to stack exhaustion

Ubuntu Security Notice 6683-1 - It was discovered that HtmlCleaner incorrectly handled certain html documents. An attacker could possibly use this issue to cause a denial of service via application crash.

Debian Linux Security Advisory 5471-1 - A security vulnerability has been discovered in libhtmlcleaner-java, a Java HTML parser library. An attacker was able to cause a denial of service (StackOverflowError) if the parser runs on user supplied input with deeply nested HTML elements. This update introduces a new nesting depth limit which can be overridden in cleaner properties.

An issue was discovered htmlcleaner thru = 2.28 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.