CVE-2026-73610: Siyuan-Note Siyuan

Medium severity, CVSS 5.8. EPSS: 0.3% chance of exploitation in the next 30 days.

SiYuan before v3.7.4 contains an information disclosure vulnerability in the local storage filter that returns the administrator's entire storage map with only three keys sanitized. Unauthenticated attackers or publish readers can retrieve closed-tab history, search keywords, private document identifiers, and expanded folder paths by calling the getLocalStorage endpoint.

Affected products

• Siyuan-Note Siyuan: before 3.7.4 (fixed in 3.7.4)

Published 2026-08-13. Last modified 2026-08-26.