CVE-2026-72793
SiYuan before v3.7.4 Information Disclosure via /api/system/getConf
- State
- Published
- Severity
- 9.2 Critical
- Published
- Aug 12, 2026
- Updated
- Aug 14, 2026
- Reserved
- Aug 10, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N | VulnCheck |
| 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-522 Insufficiently Protected Credentials
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- GitHub Security Advisory (GHSA-h4v5-crx2-3cv4)vendor-advisory
- VulnCheck Advisory: SiYuan before v3.7.4 Information Disclosure via /api/system/getConfthird-party-advisory
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