CVE-2026-56150: Allocation of Resources Without Limits or Throttling in Fleet Server Leading to Denial of Service

Published Jul 1, 2026
·
Updated

Allocation of Resources Without Limits or Throttling (CWE-770) in Fleet Server can lead to a denial of service via Excessive Allocation (CAPEC-130). An attacker can submit a specially crafted request to an upload endpoint that causes excessive memory consumption, which may render Fleet Server unavailable.

Affected Software

3 affected components
Fleet Server
Elastic Fleet Server>=8.0.0<8.19.11
Elastic Fleet Server>=9.0.0<9.2.5

Event History

Jul 1, 2026
CVE Published
via MITRE·04:26 PM
Data Sourced
via MITRE·04:26 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:16 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2026-56150?

The severity of CVE-2026-56150 is rated as medium with a score of 6.5.

2

What type of vulnerability is CVE-2026-56150?

CVE-2026-56150 is a vulnerability related to the Allocation of Resources Without Limits or Throttling, which can lead to a denial of service.

3

How does CVE-2026-56150 affect Fleet Server?

CVE-2026-56150 affects Fleet Server by allowing an attacker to cause excessive memory consumption through specially crafted requests, leading to potential unavailability.

4

What is the potential impact of CVE-2026-56150?

The potential impact of CVE-2026-56150 is a denial of service, which can render the Fleet Server unavailable to legitimate users.

5

How can organizations mitigate the risks associated with CVE-2026-56150?

Organizations can mitigate the risks of CVE-2026-56150 by implementing request validation, rate limiting, and resource allocation controls to prevent excessive usage.

Contact

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