CVE-2026-56149

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 55/100
Published: 2026-07-01 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). A user with elevated privileges can submit a specially crafted machine learning request that causes excessive memory consumption, which may render the affected node unavailable.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
elastic elasticsearch 8.0.0 – 8.19.17

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.50%
Raw Score 0.005000
Percentile 42.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00500
2026-10-28
0.00500

Intelligence Sources

nvd ref →