CVE-2026-84646 [MEDIUM] – In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested f

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.