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Vulnerability record · CVE-2026-84989 · published 3 September 2026

CVE-2026-84989: Missing authorization vulnerability

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.

7.1 CVSS 3.1 High EPSS 0.38% · top 70.3% CWE-862 · Missing authorization Deferred
7.1CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
9 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-84989), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.