CVE-2026-0531
Allocation of Resources Without Limits or Throttling in Kibana Fleet
6.5
MEDIUM
CVSS 3.1
EPSS 0.08%
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.
How to fix CVE-2026-0531
To remediate CVE-2026-0531, upgrade the affected package to a fixed version below.
- —upgrade to 8.19.10 or later
- —upgrade to 8.19.10 or later
Is CVE-2026-0531 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 8.19.10, >= 9.0.0, < 9.1.10, >= 9.2.0, < 9.2.4
- from 0, < 8.19.10, >= 9.0.0, < 9.1.10, >= 9.2.0, < 9.2.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |