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CVE-2026-26936

Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service

CVSS 4.9 MEDIUMEPSS 0.3%CWE-1333
Inefficient Regular Expression Complexity (CWE-1333) in the AI Inference Anonymization Engine in Kibana can lead Denial of Service via Regular Expression Exponential Blowup (CAPEC-492).
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Affected products
Elastic · Kibana

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References
https://discuss.elastic.co/t/kibana-8-19-11-9-2-5-security-update-esa-2026-14/385250