Medium severity · published Aug 13, 2026
CVE-2026-73610
SiYuan before v3.7.4 Information Disclosure via Local Storage
5.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
siyuan · siyuan-note
before 3.7.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73610
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73610
github.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp3q-r38w-vgqm
www.vulncheck.com
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-local-storage
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