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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.

PUBLISHED Reserved 2026-02-16 | Published 2026-03-19 | Updated 2026-03-19 | Assigner elastic




MEDIUM: 6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem types

CWE-1284 Improper Validation of Specified Quantity in Input

Product status

Default status
unaffected

9.3.0 (semver)
affected

9.0.0 (semver)
affected

8.0.0 (semver)
affected

References

discuss.elastic.co/...3-2-security-update-esa-2026-20/385535

cve.org (CVE-2026-26940)

nvd.nist.gov (CVE-2026-26940)

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