CVE-2026-26935

MEDIUM

Kibana - DoS

Title source: llm

Description

Improper Input Validation (CWE-20) in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation (CAPEC-153)

References (1)

[Various Sources] https://discuss.elastic.co/t/kibana-8-19-12-9-2-6-9-3-1-security-update-esa-2026-13/385249

Scores

CVSS v3 6.5

EPSS 0.0008

EPSS Percentile 24.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-20

Status published

Products (2)

elastic/kibana 9.3.0

elastic/kibana 8.4.0 - 8.19.12

Published Feb 26, 2026

Tracked Since Feb 27, 2026