CVE-2026-26940 (GCVE-0-2026-26940)

Vulnerability from cvelistv5 – Published: 2026-03-19 17:14 – Updated: 2026-03-19 17:48
VLAI?
Title
Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
Summary
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.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
Impacted products
Vendor Product Version
Elastic Kibana Affected: 9.3.0 , ≤ 9.3.1 (semver)
Affected: 9.0.0 , ≤ 9.2.6 (semver)
Affected: 8.0.0 , ≤ 8.19.12 (semver)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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