CVE-2026-26940
MEDIUM
elastic
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Mar 19, 2026
Vendor
elastic
Description
Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead Denial of Service via Excessive Allocation (CAPEC-130). The vulnerability allows an authenticated user to send a specially crafted Timelion expression that overwrites internal series data properties with an excessively large quantity value.