CVE-2026-86090: Ntop Ntopng

High severity, CVSS 7.1. EPSS: 0.5% chance of exploitation in the next 30 days.

ntopng before 6.7.260717 fails to perform authorization checks in the delete endpoints and recipients REST v2 handlers. Authenticated non-administrator users can issue POST requests to irreversibly delete all configured notification endpoints and recipients, silencing all alerts.

Affected products

• Ntop Ntopng: before 6.7.260717 (fixed in 6.7.260717)

Published 2026-09-04. Last modified 2026-09-23.