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CVE-2026-56149

MEDIUM
4.9
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-56149
State
PUBLISHED
Assigner
elastic
Reserved
2026-06-19 11:01 UTC
Published
2026-07-01 16:21 UTC
Last updated
2026-07-01 17:25 UTC
Primary CWE
CWE-770
CWE-770 Allocation of Resources Without Limits or Throttling
Vendor / Product
Elastic / Elasticsearch
Sources
cve.org  ·  NVD

Severity & Metrics

4.9 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
Elastic Elasticsearch — 9.4.0 ≤ 9.4.2, 9.0.0 ≤ 9.3.5, 8.0.0 ≤ 8.19.16
Weakness (CWE)
CWESourceDescription
CWE-770 cna CWE-770 Allocation of Resources Without Limits or Throttling
CVSS scores (1)
ScoreSeverityVersionSourceVector
4.9 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
References (1)
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