CVE-2026-86090

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-05. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ntopng before 6.7.260717 fails to perform authorization checks in the delete endpoints and recipients REST v2 handlers. Authenticated non-administrator users can issue POST requests to irreversibly delete all configured notification endpoints and recipients, silencing all alerts.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

September 4, 2026

Last Modified

September 14, 2026

Advisory Details (6)

Auto-updated Sep 4, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit.
generic

ntopng before 6.7.260717 Missing Authorization on the Notification Endpoint and Recipient Delete Handlers | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ntopng-before-6.7.260717-missing-authorization-on-the-notification-endpoint-and-recipient-delete-handlers
generic

ntopng/scripts/lua/rest/v2/delete/recipients.lua at f41cc1beff90e40e12bbc2cc135bdbf649ec559f · ntop/ntopng · GitHub

https://github.com/ntop/ntopng/blob/f41cc1beff90e40e12bbc2cc135bdbf649ec559f/scripts/lua/rest/v2/delete/recipients.lua
generic

ntopng/scripts/lua/rest/v2/delete/endpoints.lua at f41cc1beff90e40e12bbc2cc135bdbf649ec559f · ntop/ntopng · GitHub

https://github.com/ntop/ntopng/blob/f41cc1beff90e40e12bbc2cc135bdbf649ec559f/scripts/lua/rest/v2/delete/endpoints.lua
generic

GitHub - ntop/ntopng: Web-based Traffic and Cybersecurity Network Traffic Monitoring · GitHub

https://github.com/ntop/ntopng
github_commit

commit 7d830f31af36 (ntop/ntopng)

Fix landed in ntop/ntopng commit 7d830f31af36 — awaiting tagged release

https://github.com/ntop/ntopng/commit/7d830f31af367745431c5d92e2e82fc432f6bdd8
github Patch Available🟡 PoC Available

Missing Authorization in REST API Allows Non-Admin Users to Delete All Notification Endpoints, Recipients, and Host Pools · Advisory · ntop/ntopng · GitHub

https://github.com/ntop/ntopng/security/advisories/GHSA-m22w-f647-vx88

Vendor Advisories for CVE-2026-86090(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 43× in last 7d / 74× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-19 06:18 UTCEG score recompute
  2. 2026-09-19 06:18 UTCVendor advisory
  3. 2026-09-19 06:18 UTCGHSA enrichment
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 17:08 UTCVendor advisory
  6. 2026-09-18 17:08 UTCGHSA enrichment
  7. 2026-09-18 03:58 UTCEG score recompute
  8. 2026-09-18 03:58 UTCVendor advisory
  9. 2026-09-18 03:58 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-17 14:49 UTCVendor advisory
  12. 2026-09-17 14:49 UTCGHSA enrichment
  13. 2026-09-17 01:40 UTCEG score recompute
  14. 2026-09-17 01:40 UTCVendor advisory
  15. 2026-09-17 01:40 UTCGHSA enrichment
  16. 2026-09-16 14:09 UTCEPSS rescore
  17. 2026-09-16 12:31 UTCEG score recompute
  18. 2026-09-16 12:31 UTCVendor advisory
  19. 2026-09-16 12:31 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 23:22 UTCVendor advisory
  22. 2026-09-15 23:22 UTCGHSA enrichment
  23. 2026-09-15 09:36 UTCEG score recompute
  24. 2026-09-15 09:36 UTCVendor advisory
  25. 2026-09-15 09:36 UTCGHSA enrichment
Show 49 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-15 03:12 UTCEPSS rescore
  3. 2026-09-14 20:27 UTCEG score recompute
  4. 2026-09-14 20:27 UTCVendor advisory
  5. 2026-09-14 20:27 UTCGHSA enrichment
  6. 2026-09-14 19:40 UTCEG score recompute
  7. 2026-09-14 19:40 UTCVendor advisory
  8. 2026-09-14 19:40 UTCGHSA enrichment
  9. 2026-09-14 11:12 UTCVendor advisory
  10. 2026-09-14 11:12 UTCGHSA enrichment
  11. 2026-09-13 22:03 UTCEG score recompute
  12. 2026-09-13 22:03 UTCVendor advisory
  13. 2026-09-13 22:03 UTCGHSA enrichment
  14. 2026-09-13 08:53 UTCVendor advisory
  15. 2026-09-13 08:53 UTCGHSA enrichment
  16. 2026-09-12 19:44 UTCEG score recompute
  17. 2026-09-12 19:44 UTCVendor advisory
  18. 2026-09-12 19:44 UTCGHSA enrichment
  19. 2026-09-12 06:34 UTCVendor advisory
  20. 2026-09-12 06:34 UTCGHSA enrichment
  21. 2026-09-11 17:25 UTCEG score recompute
  22. 2026-09-11 17:25 UTCVendor advisory
  23. 2026-09-11 17:25 UTCGHSA enrichment
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 14:53 UTCEPSS rescore
  26. 2026-09-11 03:42 UTCGHSA enrichment
  27. 2026-09-10 14:33 UTCEG score recompute
  28. 2026-09-10 14:33 UTCGHSA enrichment
  29. 2026-09-10 01:24 UTCGHSA enrichment
  30. 2026-09-09 12:15 UTCVendor advisory
  31. 2026-09-09 12:15 UTCGHSA enrichment
  32. 2026-09-08 23:04 UTCEG score recompute
  33. 2026-09-08 23:04 UTCGHSA enrichment
  34. 2026-09-08 22:01 UTCEPSS rescore
  35. 2026-09-08 05:36 UTCGHSA enrichment
  36. 2026-09-07 16:25 UTCEG score recompute
  37. 2026-09-07 16:25 UTCGHSA enrichment
  38. 2026-09-07 03:15 UTCGHSA enrichment
  39. 2026-09-06 14:02 UTCEG score recompute
  40. 2026-09-06 14:02 UTCGHSA enrichment
  41. 2026-09-06 13:48 UTCEPSS rescore
  42. 2026-09-06 00:52 UTCEG score recompute
  43. 2026-09-06 00:52 UTCGHSA enrichment
  44. 2026-09-05 15:31 UTCEPSS rescore
  45. 2026-09-05 11:40 UTCEG score recompute
  46. 2026-09-05 11:40 UTCGHSA enrichment
  47. 2026-09-04 22:31 UTCEG score recompute
  48. 2026-09-04 21:54 UTCEG score recompute
  49. 2026-09-04 21:54 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-86090?
CVE-2026-86090 is a high vulnerability published on September 4, 2026. ntopng before 6.7.260717 fails to perform authorization checks in the delete endpoints and recipients REST v2 handlers. Authenticated non-administrator users can issue POST requests to irreversibly delete all configured notification endpoints and recipients, silencing all alerts.
When was CVE-2026-86090 disclosed?
CVE-2026-86090 was first published in the National Vulnerability Database on September 4, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86090 actively exploited?
CVE-2026-86090 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 83.4% of all scored CVEs.
What is the CVSS score of CVE-2026-86090?
CVE-2026-86090 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-86090?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86090, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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