What’s Vulnerable › Vulnerabilities

CVE-2026-73610: SiYuan before v3.7.4 Information Disclosure via Local Storage

• Severity: medium (CVSS 5.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-10-24
• Weakness: CWE-639

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.

Affected products

• siyuan-note siyuan: before 3.7.4 — fixed in 3.7.4

How to fix

Upgrade to a fixed version: siyuan-note siyuan 3.7.4. Check the vendor advisory for mitigations.

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp3q-r38w-vgqm
• https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-local-storage
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp3q-r38w-vgqm

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