---
id: CVE-2026-84990
title: ntopng is a web-based network traffic monitoring application
summary: >-
  ntopng is a web-based network traffic monitoring application. Prior to
  6.7.260718,
  scripts/lua/rest/v2/get/system/configurations/list_available_backups.lua and
  scripts/lua/rest/v2/get/system/configurations/download_backup.lua allow any a…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-200
  - CWE-862
vendor: ntop
product: ntopng
affected:
  - ntopng < 6.7.260718
published: '2026-09-21'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:17:50.103'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84990'
references:
  - url: >-
      https://github.com/ntop/ntopng/commit/f912ee93bc143330b6ff3bb946ee7211e5ee9e1a
    label: security-advisories@github.com
  - url: 'https://github.com/ntop/ntopng/security/advisories/GHSA-7gqc-vjwr-6rh5'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
epss: 0.00457
epssPercentile: 0.36924
ingestedAt: '2026-09-21T16:49:07.876Z'
---

## Overview

ntopng is a web-based network traffic monitoring application. Prior to 6.7.260718, scripts/lua/rest/v2/get/system/configurations/list_available_backups.lua and scripts/lua/rest/v2/get/system/configurations/download_backup.lua allow any authenticated non-admin user to list and download system-configuration backups without an administrator check. The download path reaches backup_config.export_backup, and prefs_dump_utils.build_prefs_dump_table includes the ntopng.user.* Redis key space in the backup. A downloaded backup can therefore disclose password hashes for local users and, when configured, API tokens, TOTP secrets, and WebAuthn credential data, enabling account compromise through usable or recoverable credentials. This issue is fixed in version 6.7.260718.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.