CVE-2026-78593

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-03. 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.

An insufficiently validated configuration field in Kibana's Cribl integration allows an authenticated user holding Kibana Fleet management privileges to inject attacker-controlled expressions into a server-side script template, resulting in an Elasticsearch ingest pipeline being written beyond the caller's authorized Elasticsearch permissions.

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
19%
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-2026-151) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-151/390159

Vendor Advisories for CVE-2026-78593(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 20× in last 7d / 60× 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 03:53 UTCEG score recompute
  2. 2026-09-25 03:53 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 06:00 UTCEG score recompute
  5. 2026-09-24 06:00 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 08:07 UTCEG score recompute
  8. 2026-09-23 08:07 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 10:13 UTCEG score recompute
  11. 2026-09-22 10:13 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 12:20 UTCEG score recompute
  14. 2026-09-21 12:20 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 14:26 UTCGHSA enrichment
  17. 2026-09-19 16:29 UTCEG score recompute
  18. 2026-09-19 16:29 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 18:36 UTCGHSA enrichment
  21. 2026-09-17 20:33 UTCEG score recompute
  22. 2026-09-17 20:33 UTCGHSA enrichment
  23. 2026-09-16 21:20 UTCEG score recompute
  24. 2026-09-16 21:20 UTCGHSA enrichment
  25. 2026-09-16 14:08 UTCEPSS rescore
Show 35 more
  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-15 23:24 UTCEG score recompute
  3. 2026-09-15 23:24 UTCGHSA enrichment
  4. 2026-09-15 03:12 UTCEPSS rescore
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-15 00:52 UTCGHSA enrichment
  7. 2026-09-14 02:59 UTCEG score recompute
  8. 2026-09-14 02:59 UTCGHSA enrichment
  9. 2026-09-13 05:05 UTCEG score recompute
  10. 2026-09-13 05:05 UTCGHSA enrichment
  11. 2026-09-12 07:12 UTCEG score recompute
  12. 2026-09-12 07:12 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 09:18 UTCGHSA enrichment
  16. 2026-09-10 11:25 UTCEG score recompute
  17. 2026-09-10 11:25 UTCGHSA enrichment
  18. 2026-09-09 13:17 UTCEG score recompute
  19. 2026-09-09 13:17 UTCGHSA enrichment
  20. 2026-09-08 22:01 UTCEPSS rescore
  21. 2026-09-08 15:20 UTCGHSA enrichment
  22. 2026-09-08 09:59 UTCEG score recompute
  23. 2026-09-08 09:59 UTCGHSA enrichment
  24. 2026-09-07 10:53 UTCEG score recompute
  25. 2026-09-07 10:52 UTCGHSA enrichment
  26. 2026-09-06 13:48 UTCEPSS rescore
  27. 2026-09-06 12:59 UTCEG score recompute
  28. 2026-09-06 12:59 UTCGHSA enrichment
  29. 2026-09-05 15:06 UTCGHSA enrichment
  30. 2026-09-04 17:13 UTCEG score recompute
  31. 2026-09-04 17:13 UTCGHSA enrichment
  32. 2026-09-03 19:20 UTCEG score recompute
  33. 2026-09-03 19:00 UTCEG score recompute
  34. 2026-09-03 18:42 UTCEG score recompute
  35. 2026-09-03 18:38 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78593?
CVE-2026-78593 is a medium vulnerability published on September 3, 2026. An insufficiently validated configuration field in Kibana's Cribl integration allows an authenticated user holding Kibana Fleet management privileges to inject attacker-controlled expressions into a server-side script template, resulting in an Elasticsearch ingest pipeline being written beyond the…
When was CVE-2026-78593 disclosed?
CVE-2026-78593 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-2026-78593 actively exploited?
CVE-2026-78593 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 80.6% of all scored CVEs.
What is the CVSS score of CVE-2026-78593?
CVE-2026-78593 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-78593?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78593, 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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