CVE-2026-93921 [MEDIUM] – SiYuan versions through 3.8.4 fail to enforce publish access control in the getDynamicIcon

SiYuan versions through 3.8.4 fail to enforce publish access control in the getDynamicIcon endpoint, allowing read-only token holders to access document metadata. Attackers can call the endpoint with type=8 and crafted content to read block titles, names, aliases, and hierarchical paths of restricted documents via template injection.