CVE-2026-72793

HighCVSS 8.6/10Last modified Oct 24, 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.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-522

Affected software

No affected versions have been published.

Timeline

Published
Aug 12, 2026
Last modified
Oct 24, 2026
NVD status
Deferred

Related CVEs from 2026

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CVE-2026-72793: High severity, CVSS 8.6 | Vulnix