CVE-2026-72793

CVSS 9.2 (critical) · published 2026-08-12

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.

Weakness: CWE-522

Source: NVD CVE-2026-72793

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h4v5-crx2-3cv4
• https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-api-system-getconf
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h4v5-crx2-3cv4

Check your software

Connect an AI agent to the FixLane MCP server or ask the Telegram bot to check what you have installed against incidents with a verified fixed version.