CVE-2026-78583

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.

Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.

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
30%
KEV
Not listed

Published

September 3, 2026

Last Modified

September 8, 2026

Advisory Details (1)

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

Kibana 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-140) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158

Vendor Advisories for CVE-2026-78583(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 26× in last 7d / 82× 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 00:58 UTCEG score recompute
  2. 2026-09-25 00:58 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 12:45 UTCGHSA enrichment
  5. 2026-09-24 00:32 UTCEG score recompute
  6. 2026-09-24 00:32 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 12:20 UTCGHSA enrichment
  9. 2026-09-23 00:07 UTCEG score recompute
  10. 2026-09-23 00:07 UTCGHSA enrichment
  11. 2026-09-22 16:01 UTCEPSS rescore
  12. 2026-09-22 11:54 UTCGHSA enrichment
  13. 2026-09-21 23:43 UTCEG score recompute
  14. 2026-09-21 23:42 UTCGHSA enrichment
  15. 2026-09-21 21:09 UTCEPSS rescore
  16. 2026-09-21 11:30 UTCGHSA enrichment
  17. 2026-09-20 23:18 UTCEG score recompute
  18. 2026-09-20 23:18 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 10:45 UTCGHSA enrichment
  21. 2026-09-19 22:33 UTCEG score recompute
  22. 2026-09-19 22:33 UTCGHSA enrichment
  23. 2026-09-19 10:21 UTCGHSA enrichment
  24. 2026-09-18 22:09 UTCEG score recompute
  25. 2026-09-18 22:09 UTCGHSA enrichment
Show 57 more
  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 09:57 UTCGHSA enrichment
  3. 2026-09-17 21:45 UTCEG score recompute
  4. 2026-09-17 21:45 UTCGHSA enrichment
  5. 2026-09-17 09:33 UTCGHSA enrichment
  6. 2026-09-16 21:20 UTCEG score recompute
  7. 2026-09-16 21:20 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 09:03 UTCEG score recompute
  10. 2026-09-16 09:03 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 20:00 UTCGHSA enrichment
  13. 2026-09-15 07:48 UTCEG score recompute
  14. 2026-09-15 07:48 UTCGHSA enrichment
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-14 19:36 UTCGHSA enrichment
  18. 2026-09-14 07:24 UTCGHSA enrichment
  19. 2026-09-13 19:12 UTCEG score recompute
  20. 2026-09-13 19:12 UTCGHSA enrichment
  21. 2026-09-13 07:00 UTCGHSA enrichment
  22. 2026-09-12 18:48 UTCEG score recompute
  23. 2026-09-12 18:48 UTCGHSA enrichment
  24. 2026-09-12 06:36 UTCGHSA enrichment
  25. 2026-09-11 18:24 UTCEG score recompute
  26. 2026-09-11 18:24 UTCGHSA enrichment
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 14:53 UTCEPSS rescore
  29. 2026-09-11 06:11 UTCGHSA enrichment
  30. 2026-09-10 17:59 UTCEG score recompute
  31. 2026-09-10 17:59 UTCGHSA enrichment
  32. 2026-09-10 05:47 UTCGHSA enrichment
  33. 2026-09-09 17:35 UTCGHSA enrichment
  34. 2026-09-09 05:18 UTCEG score recompute
  35. 2026-09-09 05:17 UTCGHSA enrichment
  36. 2026-09-08 22:01 UTCEPSS rescore
  37. 2026-09-08 17:05 UTCGHSA enrichment
  38. 2026-09-08 15:20 UTCGHSA enrichment
  39. 2026-09-08 09:59 UTCGHSA enrichment
  40. 2026-09-07 21:03 UTCEG score recompute
  41. 2026-09-07 21:03 UTCGHSA enrichment
  42. 2026-09-07 08:50 UTCGHSA enrichment
  43. 2026-09-06 20:36 UTCEG score recompute
  44. 2026-09-06 20:36 UTCGHSA enrichment
  45. 2026-09-06 13:48 UTCEPSS rescore
  46. 2026-09-06 08:23 UTCGHSA enrichment
  47. 2026-09-05 20:11 UTCEG score recompute
  48. 2026-09-05 20:11 UTCGHSA enrichment
  49. 2026-09-05 08:00 UTCGHSA enrichment
  50. 2026-09-04 19:48 UTCEG score recompute
  51. 2026-09-04 19:47 UTCGHSA enrichment
  52. 2026-09-04 07:32 UTCEG score recompute
  53. 2026-09-04 07:32 UTCGHSA enrichment
  54. 2026-09-03 19:20 UTCEG score recompute
  55. 2026-09-03 19:00 UTCEG score recompute
  56. 2026-09-03 18:42 UTCEG score recompute
  57. 2026-09-03 18:38 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78583?
CVE-2026-78583 is a high vulnerability published on September 3, 2026. Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user…
When was CVE-2026-78583 disclosed?
CVE-2026-78583 was first published in the National Vulnerability Database on September 3, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78583 actively exploited?
CVE-2026-78583 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 70.2% of all scored CVEs.
What is the CVSS score of CVE-2026-78583?
CVE-2026-78583 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-78583?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78583, 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-2026-78583

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