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).

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00036.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Elastic Kibana unaffected
Version Status Constraints
9.0.0 affected ≤ 9.2.4
8.0.0 affected ≤ 8.19.10

No data.

No data.

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Vendors Products
Elastic Subscribe
Kibana Subscribe

Project Subscriptions

Vendors Products
Elastic Subscribe
Kibana Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Fri, 27 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 27 Feb 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Elastic
Elastic kibana
Vendors & Products Elastic
Elastic kibana

Thu, 26 Feb 2026 17:30:00 +0000

Type Values Removed Values Added
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).
Title Inefficient Regular Expression Complexity in Kibana Leading to Denial of Service
Weaknesses CWE-1333
References
Metrics cvssV3_1

{'score': 4.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: elastic

Published:

Updated: 2026-02-26T18:28:11.114Z

Reserved: 2026-02-16T16:42:05.774Z

Link: CVE-2026-26936

cve-icon Vulnrichment

Updated: 2026-02-26T17:53:26.995Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-26T18:23:07.973

Modified: 2026-02-27T14:06:37.987

Link: CVE-2026-26936

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-27T09:07:20Z

Weaknesses