Vulnerability · Published Aug 12, 2026 · Assigned by VulnCheck

CVE-2026-72796SiYuan before v3.7.4 Access Control Bypass via Static Routes

Medium 5.8

In plain English

A medium-severity missing authorization in siyuan from siyuan-note. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.8Medium

Exploit odds (30 days)0.4%top 70.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260725122641-34be6c0bb073	GHSA-fgmr-7w36-9qfq
Go	github.com/siyuan-note/siyuan/kernel	0.0.0-20260725122641-34be6c0bb073	GO-2026-6423

Affected products (as reported)

Vendor	Product	Versions
siyuan-note	siyuan	0 – before 3.7.4

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

References

GitHub Security Advisory (GHSA-fgmr-7w36-9qfq) vendor-advisory
VulnCheck Advisory: SiYuan before v3.7.4 Access Control Bypass via Static Routes third-party-advisory