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Vulnerability record · CVE-2026-26936 · published 26 February 2026

CVE-2026-26936: Elastic kibana inefficient regular expression (redos) vulnerability

Elastic · Kibana

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).

7.5 CVSS 3.1 High EPSS 0.53% · top 57.8% CWE-1333 · Inefficient regular expression (ReDoS)
7.5CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

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:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-26936), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.