Allocation of Resources Without Limits or Throttling in Fleet Server Leading to Denial of Service
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 Versions:
- 8.x: All versions from 8.0.0 up to and including 8.19.10
- 9.x:
- All versions from 9.0.0 up to and including 9.2.4
Affected Configurations:
- All configurations are affected.
Solutions and Mitigations:
The issue is resolved in version 8.19.11, 9.2.5, and 9.3.0.
For Users that Cannot Upgrade:
There are no workarounds for this vulnerability.
Indicators of Compromise (IOC)
No specific indicators of compromise have been identified for this vulnerability.
Severity: CVSSv3.1: Medium ( 6.5 ) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVE ID: CVE-2026-56150
Problem Type: CWE-770 - Allocation of Resources Without Limits or Throttling
Impact: CAPEC-130 - Excessive Allocation