GitHub Security Advisory (GHSA-9cqf-hhrq-7v45)Vendor advisory
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqf-hhrq-7v45 CVE-2026-73608
CRITICAL
SiYuan before v3.7.4 Authorization Bypass via getAttributeViewSearchTarget
Record summary
CVE-2026-73608 has a selected CVSS score of 9.2 (critical).
Description
SiYuan's development branch (endpoint introduced by commit 9b8e8956f, not present in v3.7.3 or master, patched in v3.7.4) contains a missing-authorization vulnerability in the /api/av/getAttributeViewSearchTarget endpoint. The route is registered with CheckAuth only and performs no authorization checks (no CheckReadonly, no publish-access or encrypted-notebook gating). Given a database identifier taken from a published page and a keyword, an anonymous reader can query the endpoint to retrieve matching database row content, including rows that publish filters (FilterAttributeViewByPublishAccess) would otherwise withhold. No released stable version is affected.
Description source: CVE List
Exploitation context
CISA SSVC decision
ExploitationPoC
AutomatableYes
Technical impactPartial
CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 13, 2026 · Source: CVE List
Affected products and versions
1| Product | Source | Version range | Status |
|---|---|---|---|
Default status: unaffected | CVE List | Before 3.7.4 | affected |
| 3.7.4 | unaffected |
References
3nvd.nist.gov
https://nvd.nist.gov/vuln/detail/CVE-2026-73608 VulnCheck Advisory: SiYuan before v3.7.4 Authorization Bypass via getAttributeViewSearchTargetThird-party advisory
https://www.vulncheck.com/advisories/siyuan-before-authorization-bypass-via-getattributeviewsearchtarget