CVE-2026-84990

ntopng: Missing Authorization on System Configuration Backup Download and Listing

Published: Sep 21, 2026Updated: Sep 23, 2026 Sources: CVE List NVDCWE-200

8.8HIGH

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-200 CWE-862

Affected Products

ntop

commercialaka ndpi, ntopng

ntopngOn-prem

Enterprise Software / itsm-monitoring

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Collection

Initial Access

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References

https://github.com/ntop/ntopng/security/advisories/GHSA-7gqc-vjwr-6rh5

github.com

https://github.com/ntop/ntopng/commit/f912ee93bc143330b6ff3bb946ee7211e5ee9e1a

github.com

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