CVE-2026-56150

HIGH
MEDIUM Priority: 0.04 BB Relevance: 75/100
Published: 2026-07-01 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
elastic fleet_server 8.0.0 – 8.19.11

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.48%
Raw Score 0.004760
Percentile 41.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00476
2026-10-28
0.00476

Intelligence Sources

nvd ref →