Medium severity · published Sep 1, 2026
CVE-2026-78597
Missing Authorization in Kibana Entity Store Leading to Unauthorized API Key Creation
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
Missing Authorization (CWE-862) in the Kibana Entity Store feature can lead to unauthorized credential creation via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user holding only low-privilege Security feature access could invoke an administrative operation that creates and persists Elasticsearch API keys under the caller's identity, bypassing the elevated cluster and Kibana privileges that the documented Entity Store setup flow requires.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KI
Kibana · Elastic
8.0.0 through 8.19.20; 9.0.3 through 9.4.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78597
Vendor Advisory
https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-security-update-esa-2026-155/390072
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