CVE-2026-26940CWE-1284

Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service

Medium · published March 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
41.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00490 · 41.2th percentile
Weakness
CWE-1284 · Improper Validation of Specified Quantity in Input
Published
2026-03-19T17:14Z
EPSS history
Timeline
  • 19 MAR 17:14Z
    Improper Validation of Specified Quantity in Input in Kibana Leading to Denial of Service
    cvelistv5