Rewindex/CVEs/Elastic Cloud

CVE-2026-26936: Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service

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).

Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H · CWE-1333

Tracked companies

Elastic Cloud

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

Elastic: Kibana

References

• CVE record on cve.org (opens in new tab)
• NVD entry (opens in new tab)
• discuss.elastic.co/t/kibana-8-19-11-9-2-5-security-update-esa-2026-14/385250 (opens in new tab)

All CVEsMarkdownJSON

• CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
• This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
• Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
• EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)