CVE-2026-63139: Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated low-privileged user can exploit an uncontrolled resource consumption vulnerability in Kibana's Canvas functionality by sending a specially crafted request, causing the Kibana server process to terminate and resulting in a denial of service for all users of the affected Kibana instance.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63139?
The severity of CVE-2026-63139 is rated as medium with a score of 6.5.
How do I fix CVE-2026-63139?
To mitigate CVE-2026-63139, upgrade to the latest version of Elastic Kibana where the vulnerability has been addressed.
What type of attack does CVE-2026-63139 enable?
CVE-2026-63139 enables denial of service attacks via uncontrolled resource consumption.
Who can exploit CVE-2026-63139?
An authenticated low-privileged user can exploit CVE-2026-63139 in Kibana.
What component of Kibana is affected by CVE-2026-63139?
CVE-2026-63139 affects the Canvas functionality in Kibana.