What’s Vulnerable › Vulnerabilities

CVE-2026-86090: ntopng before 6.7.260717 Missing Authorization on the Notification Endpoint and Recipient Delete Handlers

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-09-23
• Weakness: CWE-862

Description

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

• ntopng: before 6.7.260717 — fixed in 6.7.260717

How to fix

Upgrade to a fixed version: ntopng 6.7.260717. Check the vendor advisory for mitigations.

References

• https://github.com/ntop/ntopng
• https://github.com/ntop/ntopng/blob/f41cc1beff90e40e12bbc2cc135bdbf649ec559f/scripts/lua/rest/v2/delete/endpoints.lua
• https://github.com/ntop/ntopng/blob/f41cc1beff90e40e12bbc2cc135bdbf649ec559f/scripts/lua/rest/v2/delete/recipients.lua
• https://github.com/ntop/ntopng/commit/7d830f31af367745431c5d92e2e82fc432f6bdd8
• https://github.com/ntop/ntopng/security/advisories/GHSA-m22w-f647-vx88
• https://www.vulncheck.com/advisories/ntopng-before-6.7.260717-missing-authorization-on-the-notification-endpoint-and-recipient-delete-handlers

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