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TI-2026-58396 Aliases CVE-2026-84989

ntopng's Missing Authorization in REST API Allows Non-Admin Users to Delete and Rename Arbitrary Tags

Priority MEDIUM 64CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

ntopng is a web-based network traffic monitoring application. In versions 6.7.0 through 6.7.260717, two REST v2 endpoints that manage ntopng's tag/badge feature — `POST /lua/rest/v2/delete/tag/tag.lua` and `POST /lua/rest/v2/edit/tag/tag.lua` — perform no authorization check at all. Any authenticated user, including a non-administrator ("unprivileged") account, can delete or rename any tag in the system, including tags created by an administrator. Version 6.7.260718 contains a fix.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00383 32nd percentileScored 2026-11-07
Fix Fixed ntopng (ntop): 6.7.260718

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ntopntopng6.7.0 to before 6.7.2607186.7.260718Patch availableCNA
  • ntopng Vendorntop Affected 6.7.0 to before 6.7.260718 Fixed in 6.7.260718 Patch available CNA

Remediation

  • Fix · CNA ntopng (ntop) Fixed in 6.7.260718

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-84989

References

Other 2

  • TI-2026-58397 ntopng: Missing Authorization on System Configuration Backup Download and Listing CVSS 3.1HIGH 8.8
  • TI-2026-58894 ntopng before 6.7.260717 Missing Authorization on the Host Pool Bulk Delete Handler CVSS 4.0HIGH 7.1
  • TI-2026-85500 Stack buffer overflow in ntopng nDPI custom category detection CVSS 3.1MEDIUM 5.3
  • TI-2026-28235 ntopng through 6.6 is vulnerable to Predictable Session Identifier which can lead to… CVSS 3.1CRITICAL 9.8
  • TI-2020-09603 In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer… CVSS 3.1CRITICAL 9.8
  • TI-2018-08982 An issue was discovered in ntopng 3.4 before 3.4.180617. CVSS 3.1HIGH 8.1
See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences