CVE-2026-78584

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-02. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

Observable Response Discrepancy (CWE-204) in the Kibana Osquery feature can lead to information disclosure via Query System for Information (CAPEC-54). An authenticated user holding Osquery live-query privileges could determine whether a scheduled query identifier exists in a Kibana space they are not authorized to access.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

September 2, 2026

Last Modified

September 3, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

Kibana 9.4.4 Security Update (ESA-2026-161) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/kibana-9-4-4-security-update-esa-2026-161/390115

Vendor Advisories for CVE-2026-78584(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 19× in last 7d / 47× 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 13:01 UTCEG score recompute
  2. 2026-09-19 13:01 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 11:42 UTCEG score recompute
  5. 2026-09-18 11:42 UTCGHSA enrichment
  6. 2026-09-17 10:23 UTCEG score recompute
  7. 2026-09-17 10:23 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 09:04 UTCEG score recompute
  10. 2026-09-16 09:04 UTCGHSA enrichment
  11. 2026-09-16 05:15 UTCEPSS rescore
  12. 2026-09-15 07:08 UTCEG score recompute
  13. 2026-09-15 07:08 UTCGHSA enrichment
  14. 2026-09-15 03:12 UTCEPSS rescore
  15. 2026-09-15 03:12 UTCEPSS rescore
  16. 2026-09-14 05:49 UTCEG score recompute
  17. 2026-09-14 05:49 UTCGHSA enrichment
  18. 2026-09-13 04:31 UTCEG score recompute
  19. 2026-09-13 04:31 UTCGHSA enrichment
  20. 2026-09-12 03:12 UTCEG score recompute
  21. 2026-09-12 03:11 UTCGHSA enrichment
  22. 2026-09-11 14:53 UTCEPSS rescore
  23. 2026-09-11 14:53 UTCEPSS rescore
  24. 2026-09-11 01:51 UTCEG score recompute
  25. 2026-09-11 01:51 UTCGHSA enrichment
Show 22 more
  1. 2026-09-10 00:32 UTCGHSA enrichment
  2. 2026-09-08 23:13 UTCEG score recompute
  3. 2026-09-08 23:13 UTCGHSA enrichment
  4. 2026-09-08 22:01 UTCEPSS rescore
  5. 2026-09-07 19:09 UTCEG score recompute
  6. 2026-09-07 19:09 UTCGHSA enrichment
  7. 2026-09-06 17:51 UTCEG score recompute
  8. 2026-09-06 17:51 UTCGHSA enrichment
  9. 2026-09-06 13:48 UTCEPSS rescore
  10. 2026-09-05 16:31 UTCEG score recompute
  11. 2026-09-05 16:31 UTCGHSA enrichment
  12. 2026-09-04 15:10 UTCEG score recompute
  13. 2026-09-04 15:10 UTCGHSA enrichment
  14. 2026-09-04 05:07 UTCEPSS rescore
  15. 2026-09-03 13:50 UTCGHSA enrichment
  16. 2026-09-02 19:32 UTCEG score recompute
  17. 2026-09-02 19:32 UTCGHSA enrichment
  18. 2026-09-02 16:20 UTCEG score recompute
  19. 2026-09-02 16:19 UTCGHSA enrichment
  20. 2026-09-02 15:31 UTCEG score recompute
  21. 2026-09-02 14:52 UTCEG score recompute
  22. 2026-09-02 14:51 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-78584?
CVE-2026-78584 is a medium vulnerability published on September 2, 2026. Observable Response Discrepancy (CWE-204) in the Kibana Osquery feature can lead to information disclosure via Query System for Information (CAPEC-54). An authenticated user holding Osquery live-query privileges could determine whether a scheduled query identifier exists in a Kibana space they are…
When was CVE-2026-78584 disclosed?
CVE-2026-78584 was first published in the National Vulnerability Database on September 2, 2026, with the most recent update 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-2026-78584 actively exploited?
CVE-2026-78584 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 86.4% of all scored CVEs.
What is the CVSS score of CVE-2026-78584?
CVE-2026-78584 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-78584?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78584, 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-2026-78584

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