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6.5 Medium

CVE-2026-26940 Improper Validation of Specified Quantity in Input (CWE-1284) in the Timelion visualization plugin in Kibana can lead…

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.

Affected products and versions

Product Affected versions Fixed in
Kibana 9.3 9.3.0 → 9.3.1 No fix stated
Kibana 9.0 9.0.0 → 9.2.6 No fix stated
Kibana 8.0 8.0.0 → 8.19.12 No fix stated

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