What is CVE-2026-78595?

CVE-2026-78595 is a medium-severity vulnerability, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-03.

How severe is CVE-2026-78595?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CVE-2026-78595

CVE-2026-78595

Missing Authorization in Kibana Leading to Information Disclosure / Missing Authorization (CWE-862) in the Kibana Fleet feature can lead to information disclosure via Privilege Abuse (CAPEC-122). An authenticated user holding read-level Fleet agent privileges in one Kibana space could enumerate agent metadata and access diagnostic content belonging to agents enrolled in other Kibana spaces.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security@elastic.co

Frequently asked questions

What is CVE-2026-78595?: CVE-2026-78595 is a medium-severity vulnerability, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-09-03.
How severe is CVE-2026-78595?: Medium severity. CVSS v3 base score is 4.3 out of 10.