PT-2026-22165 · Elastic · Kibana

Ismisepaul + 1 · Published 2026-02-26 · Updated 2026-03-04 · CVE-2026-26936

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Kibana (affected versions not specified)

Description An issue exists in the AI Inference Anonymization Engine within Kibana that can result in a denial of service. This is due to inefficient regular expression complexity, specifically a regular expression exponential blowup. This condition can be triggered by crafted input, potentially impacting service availability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

BIT-ELK-2026-26936

BIT-KIBANA-2026-26936

CVE-2026-26936

Affected Products

Kibana

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-26936 · Security Note
• https://osv.dev/vulnerability/CVE-2026-26936 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-kibana-2026-26936 · Vendor Advisory
• https://discuss.elastic.co/t/kibana-8-19-11-9-2-5-security-update-esa-2026-14/385250 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-elk-2026-26936 · Vendor Advisory
• https://t.me/cveNotify/153770 · Telegram Post
• https://twitter.com/pulsepatchio/status/2029207316092903538 · Twitter Post
• https://t.me/CVEtracker/45862 · Telegram Post
• https://twitter.com/CVEnew/status/2027099246097568206 · Twitter Post