CVE-2026-42400
MEDIUM EPSS 21.3%
Published May 28, 20261mo ago · Modified Jun 17, 20261w ago
6.5 CVSS 3.1
Published May 28, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
Description
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user can send a specially crafted compressed request payload that is processed prior to authorization checks, causing excessive memory and CPU resource consumption that can result in a Kibana instance becoming unresponsive or crashing.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
21.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-400 Uncontrolled Resource Consumption Resource Mgmt
Affected Products 3
References 1
- discuss.elastic.co https://discuss.elastic.co/t/kibana-8-19-16-9-3-5-9-4-2-security-update-esa-2026-35/386554
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.