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CVE-2026-84989

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

Published: Sep 3, 2026Updated: Sep 9, 2026 Sources: CVE List NVDCWE-862
7.1HIGH
NVD MITRE
EPSS Score
0.2%
Top 87.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:LAvailability
Low
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Weaknesses

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

2 techniques
Initial Access
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References

https://github.com/ntop/ntopng/security/advisories/GHSA-43p9-5758-wwq8
github.com
https://github.com/ntop/ntopng/commit/0e41f24b367fb9caf750459da67827326e3289e8
github.com

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