CVE-2026-72643

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-13. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 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.

Kibana Agent Builder determines whether a caller owns a private agent by comparing a stable user identifier when one is recorded, and falling back to a comparison of the username when it is not. A username is not unique across Elasticsearch authentication realms, so two distinct principals that share a username in different realms are treated as the same owner. This discloses the configuration and instructions of an agent the caller does not own, and allows that agent to be altered or removed.

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

August 13, 2026

Last Modified

August 13, 2026

Advisory Details (1)

Auto-updated Aug 13, 2026
No patch confirmed yet.
generic

Kibana 9.4.5, 9.5.1 Security Update (ESA-2026-124) - Security Announcements - Discuss the Elastic Stack

https://discuss.elastic.co/t/kibana-9-4-5-9-5-1-security-update-esa-2026-124/389538

Vendor Advisories for CVE-2026-72643(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 29× in last 7d / 34× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 19:50 UTCGHSA enrichment
  3. 2026-08-20 07:08 UTCGHSA enrichment
  4. 2026-08-19 18:27 UTCEG score recompute
  5. 2026-08-19 18:27 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 04:17 UTCGHSA enrichment
  8. 2026-08-18 15:36 UTCEG score recompute
  9. 2026-08-18 15:36 UTCGHSA enrichment
  10. 2026-08-18 13:49 UTCEPSS rescore
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 02:52 UTCGHSA enrichment
  13. 2026-08-17 14:10 UTCEG score recompute
  14. 2026-08-17 14:10 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 01:29 UTCEG score recompute
  17. 2026-08-17 01:29 UTCGHSA enrichment
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 14:56 UTCEPSS rescore
  20. 2026-08-16 12:48 UTCEG score recompute
  21. 2026-08-16 12:48 UTCGHSA enrichment
  22. 2026-08-16 02:15 UTCEPSS rescore
  23. 2026-08-16 00:07 UTCGHSA enrichment
  24. 2026-08-15 11:26 UTCEG score recompute
  25. 2026-08-15 11:26 UTCGHSA enrichment
Show 9 more
  1. 2026-08-15 01:31 UTCEPSS rescore
  2. 2026-08-14 22:45 UTCGHSA enrichment
  3. 2026-08-14 10:04 UTCEG score recompute
  4. 2026-08-14 10:04 UTCGHSA enrichment
  5. 2026-08-13 21:22 UTCEG score recompute
  6. 2026-08-13 20:37 UTCEG score recompute
  7. 2026-08-13 20:21 UTCEG score recompute
  8. 2026-08-13 19:22 UTCEG score recompute
  9. 2026-08-13 19:21 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72643?
CVE-2026-72643 is a high vulnerability published on August 13, 2026. Kibana Agent Builder determines whether a caller owns a private agent by comparing a stable user identifier when one is recorded, and falling back to a comparison of the username when it is not. A username is not unique across Elasticsearch authentication realms, so two distinct principals that…
When was CVE-2026-72643 disclosed?
CVE-2026-72643 was first published in the National Vulnerability Database on August 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72643 actively exploited?
CVE-2026-72643 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 83.0% of all scored CVEs.
What is the CVSS score of CVE-2026-72643?
CVE-2026-72643 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-72643?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72643, 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-2026-72643

Explore →

Is Your Infrastructure Affected by CVE-2026-72643?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs