SiYuan before v3.7.4 Information Disclosure via Local Storage

Advisories

SiYuan before v3.7.4 Information Disclosure via Local Storage

severity: medium
date: 8/13/2026
Affecting: siyuan >= 0, < 3.7.4
CVE: CVE-2026-73610
CWE: CWE-639 Authorization Bypass Through User-Controlled Key
CVSS: 6.9
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
References: GitHub Security Advisory (GHSA-xp3q-r38w-vgqm)
Credit: Shirshakhtml
Description: 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.

Ready to get Started?

Explore VulnCheck, a next-generation Cyber Threat Intelligence platform, which provides exploit and vulnerability intelligence to help you prioritize and remediate vulnerabilities that matter.

Vulnerability Prioritization
Prioritize vulnerabilities that matter based on the threat landscape and defer vulnerabilities that don't.
Early Warning System
Real-time alerting of changes in the vulnerability landscape so that you can take action before the attacks start.

Schedule a Demo