CVE-2026-86191: Authorization Bypass Through User-Controlled Key in siyuan-note siyuan
SiYuan versions before v3.8.2 contain an information disclosure vulnerability in the getAttributeViewKeysByID endpoint that allows publish readers to enumerate private attribute view key definitions without verifying parent database visibility. Attackers can access the endpoint to retrieve complete key schemas including sensitive field names and relation definitions from hidden databases.
CVE-2026-86191: Authorization Bypass Through User-Controlled Key in siyuan-note siyuan
Description
SiYuan versions before v3.8.2 contain an information disclosure vulnerability in the getAttributeViewKeysByID endpoint that allows publish readers to enumerate private attribute view key definitions without verifying parent database visibility. Attackers can access the endpoint to retrieve complete key schemas including sensitive field names and relation definitions from hidden databases.
CVSS v4.0
Score 5.3medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-05T11:51:31.102Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9c0d21acd9273b49d97139
Added to database: 09/05/2026, 12:37:53 UTC
Last updated: 09/05/2026, 13:22:24 UTC
Views: 3
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