CVE-2026-0531

Allocation of Resources Without Limits or Throttling in Kibana Fleet

State: Published
Severity: 6.5 Medium
Published: Jan 13, 2026
Updated: Jan 13, 2026
Reserved: Dec 19, 2025

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted bulk retrieval request. This requires an attacker to have low-level privileges equivalent to the viewer role, which grants read access to agent policies. The crafted request can cause the application to perform redundant database retrieval operations that immediately consume memory until the server crashes and becomes unavailable to all users.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	elastic

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
KibanaElastic	7.10.0 through 7.17.29Affected 8.0.0 through 8.19.9Affected 9.0.0 through 9.1.9Affected 9.2.0 through 9.2.3Affected

References

https://discuss.elastic.co/t/kibana-8-19-10-9-1-10-9-2-4-security-update-esa-2026-04/384522

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