CVE-2026-39521: Nelio Software Nelio Content

Medium severity, CVSS 4.9. EPSS: 0.2% chance of exploitation in the next 30 days.

Server-Side Request Forgery (SSRF) vulnerability in Nelio Software Nelio Content nelio-content allows Server Side Request Forgery.This issue affects Nelio Content: from n/a through <= 4.3.1.

Affected products

• Nelio Software Nelio Content: up to and including 4.3.1

Published 2026-04-08. Last modified 2026-07-24.