Vulnerability · Published Jul 1, 2026 · Assigned by elastic
CVE-2026-56150Allocation of Resources Without Limits or Throttling in Fleet Server Leading to Denial of Service
Medium 6.5
In plain English
A medium-severity resource allocation without limits in Fleet Server from Elastic. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.5%top 58.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Elastic | Fleet Server | 9.0.0 – through 9.2.48.0.0 – through 8.19.10 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H