Medium severity · published Aug 12, 2026
CVE-2026-72796
SiYuan before v3.7.4 Access Control Bypass via Static Routes
5.8
CVSS
0.4%
EPSS
No
On KEV
Description
SiYuan before v3.7.4 contains an access control bypass vulnerability where static-file routes in the server mux bypass publish-access controls enforced on the REST API. Attackers with publish reader tokens or anonymous access in disabled-auth mode can read templates, snippets, and export artifacts by directly accessing static routes that lack the same restrictions as their REST API counterparts.
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)0.4% · higher than 29% 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-2026-72796
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72796
github.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-fgmr-7w36-9qfq
www.vulncheck.com
https://www.vulncheck.com/advisories/siyuan-before-access-control-bypass-via-static-routes
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