PT-2026-54865 · Elastic · Fleet Server

Kruskall · Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-56150

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-56150

Affected Products

Fleet Server

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-56150 · Security Note
• https://discuss.elastic.co/t/fleet-server-8-19-11-9-2-5-9-3-0-security-update-esa-2026-44 · Note