AUGUST 14, 2026
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Case File

CVE-2026-49089

MEDIUM · CVSS 6.5 EPSS 0.29%

Source: NVD + CISA KEV + EPSS · Published 2026-08-13 · Last synced 2026-08-14

CyberRota Analysis

AI-Generated

Kibana is vulnerable to a denial of service due to the lack of limits on the size of query expressions processed by its reporting connector. An authenticated user with read-only privileges can exploit this flaw by sending a large query, causing the Kibana process to become unresponsive until it is restarted. Organizations using Kibana should prioritize addressing this vulnerability to prevent potential service disruptions.

CVE
CVE-2026-49089
Severity
MEDIUM
CVSS
6.5
EPSS
0.29%

Original NVD Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). A query expression accepted by a connector reporting operation was processed without any limit on its size, and an oversized expression caused the Kibana process to spend an unbounded amount of time evaluating it. An authenticated user with read-only privileges was able to send a single request that left Kibana unable to serve any user until the process was restarted.