CVE-2026-100640 | SiYuan up to 3.8.3 IPC improper authorization

September 26, 2026 Yanac

A vulnerability categorized as problematic has been discovered in SiYuan up to 3.8.3. Impacted is the function clipboardReadMathML/clipboardReadOffice/clipboardReadWPS of the component IPC Handler. The manipulation results in improper authorization.

This vulnerability is reported as CVE-2026-100640. The attack can be launched remotely. No exploit exists.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More