What is CVE-2026-4498?

CVE-2026-4498 is a high-severity vulnerability in Elastic Kibana, classified under CWE-250. CVSS score: 7.7/10. Published 2026-04-08.

How severe is CVE-2026-4498?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Elastic Kibana

CVE-2026-4498

Execution with Unnecessary Privileges (CWE-250) in Kibana’s Fleet plugin debug route handlers can lead reading index data beyond their direct Elasticsearch RBAC scope via Privilege Abuse (CAPEC-122). This requires an authenticated Kibana u…

EPSS: 0.001 (19.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Elastic Kibana — versions 8.0.0

Weakness classification (CWE)

CWE-250

References

discuss.elastic.co/t/kibana-8-19-14-9-2-8-9-3-3-security-update-esa-2026-21/385…

Frequently asked questions

What is CVE-2026-4498?: CVE-2026-4498 is a high-severity vulnerability in Elastic Kibana, classified under CWE-250. CVSS score: 7.7/10. Published 2026-04-08.
How severe is CVE-2026-4498?: High severity. CVSS v3 base score is 7.7 out of 10.