CVE-2026-40866: Horilla-Opensource Horilla

High severity, CVSS 8.6. EPSS: 0.4% chance of exploitation in the next 30 days.

Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, an insecure direct object reference in the employee document upload endpoint allows any authenticated user to overwrite or replace or corrupt another employee’s document by changing the document ID in the upload request. This enables unauthorized modification of HR records.

Affected products

• Horilla-Opensource Horilla: version 1.5.0 only

Published 2026-04-21. Last modified 2026-06-17.