Posted by Daniel Owens via Fulldisclosure on Nov 01 As of the current versions of the Apache Struts2 JSON Plugin (e.g., version 7.4.0 and the 7.5.0 snapshot dated 28 October 2026), attackers can bypass the element-count limit purported to protect Object deserialisation added to said code as part of the WW-5618 and S2-072 "hardening controls". Please note that this vulnerability and the attack string is different than the previously reported bypass against the JSON array...