CVE-2026-13381: Vsee Clinic

High severity, CVSS 8.1. EPSS: 0.4% chance of exploitation in the next 30 days.

VSee Clinic 7.1.26 and API 1.3.0 contain an Insecure Direct Object Reference (IDOR) vulnerability in the /v1.3.0/api/files endpoint. An authenticated attacker can manipulate the 'remark' request parameter to enumerate, retrieve, and delete files belonging to other users on the application server.

Affected products

• Vsee Clinic: version 7.1.26 only
• Vsee Clinic API: version 1.3.0 only

Published 2026-07-20. Last modified 2026-08-14.