GitHub Security Advisory (GHSA-h4v5-crx2-3cv4)Vendor advisory
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h4v5-crx2-3cv4 CVE-2026-72793
CRITICAL
SiYuan before v3.7.4 Information Disclosure via /api/system/getConf
Record summary
CVE-2026-72793 has a selected CVSS score of 9.2 (critical).
Description
SiYuan versions before v3.7.4 fail to mask sensitive configuration fields in the /api/system/getConf endpoint, allowing anonymous or publish-reader users to obtain the session-cookie signing key, OS username via pandoc path, and encrypted-notebook key material. Attackers can forge and tamper with session cookies to impersonate users, and on instances without access-auth codes configured, escalate to administrator privileges.
Description 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-2026-72793 VulnCheck Advisory: SiYuan before v3.7.4 Information Disclosure via /api/system/getConfThird-party advisory
https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-api-system-getconf