CVE-2026-84779

HIGHPre-NVD 8.18.1—
EchelonGraph scoreHIGH confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-03. a secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

Subscriber Broken Access Control in Agentimus – AI SEO, llms.txt & MCP for AI Agents <= 1.51.0 versions.

CVSS v3
8.1
EG Score
8.1(high)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 3, 2026
No patch confirmed yet.

Vendor Advisories for CVE-2026-84779(1)

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 28× in last 7d / 87× 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. 2026-09-25 05:28 UTCGHSA enrichment
  2. 2026-09-24 18:29 UTCEG score recompute
  3. 2026-09-24 18:29 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 06:44 UTCGHSA enrichment
  6. 2026-09-23 19:46 UTCEG score recompute
  7. 2026-09-23 19:46 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 08:23 UTCGHSA enrichment
  10. 2026-09-22 21:25 UTCEG score recompute
  11. 2026-09-22 21:25 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 10:27 UTCGHSA enrichment
  14. 2026-09-21 23:28 UTCEG score recompute
  15. 2026-09-21 23:28 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 12:29 UTCGHSA enrichment
  18. 2026-09-21 01:31 UTCEG score recompute
  19. 2026-09-21 01:31 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 14:30 UTCGHSA enrichment
  22. 2026-09-20 03:31 UTCGHSA enrichment
  23. 2026-09-19 16:33 UTCEG score recompute
  24. 2026-09-19 16:33 UTCGHSA enrichment
  25. 2026-09-19 05:34 UTCEG score recompute
Show 62 more
  1. 2026-09-19 05:34 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 18:36 UTCGHSA enrichment
  4. 2026-09-18 07:33 UTCGHSA enrichment
  5. 2026-09-17 20:34 UTCEG score recompute
  6. 2026-09-17 20:34 UTCGHSA enrichment
  7. 2026-09-17 19:32 UTCEPSS rescore
  8. 2026-09-17 07:07 UTCGHSA enrichment
  9. 2026-09-16 20:08 UTCEG score recompute
  10. 2026-09-16 20:08 UTCGHSA enrichment
  11. 2026-09-16 14:09 UTCEPSS rescore
  12. 2026-09-16 09:09 UTCEG score recompute
  13. 2026-09-16 09:09 UTCGHSA enrichment
  14. 2026-09-16 05:15 UTCEPSS rescore
  15. 2026-09-15 22:10 UTCGHSA enrichment
  16. 2026-09-15 11:11 UTCEG score recompute
  17. 2026-09-15 11:11 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-15 00:12 UTCGHSA enrichment
  21. 2026-09-14 13:14 UTCGHSA enrichment
  22. 2026-09-14 02:15 UTCEG score recompute
  23. 2026-09-14 02:15 UTCGHSA enrichment
  24. 2026-09-13 15:17 UTCGHSA enrichment
  25. 2026-09-13 04:17 UTCGHSA enrichment
  26. 2026-09-12 17:18 UTCEG score recompute
  27. 2026-09-12 17:18 UTCGHSA enrichment
  28. 2026-09-12 06:20 UTCGHSA enrichment
  29. 2026-09-11 19:22 UTCEG score recompute
  30. 2026-09-11 19:22 UTCGHSA enrichment
  31. 2026-09-11 14:53 UTCEPSS rescore
  32. 2026-09-11 14:53 UTCEPSS rescore
  33. 2026-09-11 08:23 UTCGHSA enrichment
  34. 2026-09-10 21:25 UTCGHSA enrichment
  35. 2026-09-10 10:26 UTCEG score recompute
  36. 2026-09-10 10:26 UTCGHSA enrichment
  37. 2026-09-09 23:27 UTCGHSA enrichment
  38. 2026-09-09 10:06 UTCGHSA enrichment
  39. 2026-09-08 23:07 UTCEG score recompute
  40. 2026-09-08 23:07 UTCGHSA enrichment
  41. 2026-09-08 22:01 UTCEPSS rescore
  42. 2026-09-08 08:42 UTCGHSA enrichment
  43. 2026-09-07 21:42 UTCEG score recompute
  44. 2026-09-07 21:42 UTCGHSA enrichment
  45. 2026-09-07 10:43 UTCGHSA enrichment
  46. 2026-09-06 23:41 UTCEG score recompute
  47. 2026-09-06 23:41 UTCGHSA enrichment
  48. 2026-09-06 13:48 UTCEPSS rescore
  49. 2026-09-06 12:42 UTCGHSA enrichment
  50. 2026-09-06 01:44 UTCEG score recompute
  51. 2026-09-06 01:43 UTCGHSA enrichment
  52. 2026-09-05 15:31 UTCEPSS rescore
  53. 2026-09-05 14:44 UTCGHSA enrichment
  54. 2026-09-05 03:42 UTCGHSA enrichment
  55. 2026-09-04 16:43 UTCEG score recompute
  56. 2026-09-04 16:43 UTCGHSA enrichment
  57. 2026-09-04 05:43 UTCGHSA enrichment
  58. 2026-09-03 18:41 UTCEG score recompute
  59. 2026-09-03 18:40 UTCGHSA enrichment
  60. 2026-09-03 17:36 UTCEG score recompute
  61. 2026-09-03 16:34 UTCEG score recompute
  62. 2026-09-03 16:33 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-84779?
CVE-2026-84779 is a high vulnerability published on September 3, 2026. Subscriber Broken Access Control in Agentimus – AI SEO, llms.txt &amp; MCP for AI Agents <= 1.51.0 versions.
When was CVE-2026-84779 disclosed?
CVE-2026-84779 was first published in the National Vulnerability Database on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-84779 actively exploited?
CVE-2026-84779 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 74.2% of all scored CVEs.
What is the CVSS score of CVE-2026-84779?
CVE-2026-84779 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-84779?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-84779, 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

Explore the affected products and dependency analysis for CVE-2026-84779

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Is Your Infrastructure Affected by CVE-2026-84779?

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