CVE catalog
CVE-2026-56150
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
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.48% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | fleet_server | Not reported | 8.19.11 | fixed |
| Cpe | fleet_server | Not reported | 9.2.5 | fixed |
| Cpe | fleet_server | Not reported | 9.2.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | fleet_server | cpe | Not reported | 8.19.11 | Not reported | Not reported | Not reported |
| Cpe | fleet_server | cpe | Not reported | 9.2.5 | Not reported | Not reported | Not reported |
| Cpe | fleet_server | cpe | Not reported | 9.2.5 | Not reported | NVD-CVE-2026-56150 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esa-2026-44]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-56150]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2168.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)]