Quick answers
- Is CVE-2026-84990 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84990 being exploited in the wild.
- How severe is CVE-2026-84990?
- High severity, with a CVSS score of 8.8, published 21 September 2026.
- Which products and versions are affected?
- Ntopng prior to 6.7.260718.
- Is there a fix for CVE-2026-84990?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-84990 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-84990?
- Check whether you run Ntopng at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
Missing authorization checks in scripts/lua/rest/v2/get/system/configurations/download_backup.lua and list_available_backups.lua allow any authenticated user to enumerate and download backup files containing Redis keys ntopng.user.* and ntopng.prefs.*, including password hashes, API tokens, and TOTP secrets. Exploitation requires only valid login credentials and network access to the REST API endpoints. The backup content reaches backup_config.export_backup() which calls all_import_export:export() containing ntopng.user.* key patterns, exposing all local account credentials in a single downloadable JSON file.
Affected products
- ntop ntopng prior to 6.7.260718
Timeline
- 2026-09-21: disclosed