CVE-2026-56149
published 2026-07-01CVE-2026-56149: 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…
PriorityP425medium4.9CVSS 3.1
AVNACLPRHUINSUCNINAH
EPSS
0.50%
41.0th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| elastic | elasticsearch | >= 8.0.0 < 8.19.17 | 8.19.17 |
| elastic | elasticsearch | 8.0.0 – 8.19.16 | — |
| elastic | elasticsearch | >= 9.0.0 < 9.3.6 | 9.3.6 |
| elastic | elasticsearch | 9.0.0 – 9.3.5 | — |
| elastic | elasticsearch | >= 9.4.0 < 9.4.3 | 9.4.3 |
| elastic | elasticsearch | 9.4.0 – 9.4.2 | — |
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VulDB
Elastic Elasticsearch up to 8.19.16/9.3.5/9.4.2 Machine allocation of resources
vuldb·2026-07-01·CVSS 4.9
CVE-2026-56149 [MEDIUM] Elastic Elasticsearch up to 8.19.16/9.3.5/9.4.2 Machine allocation of resources
A vulnerability identified as problematic has been detected in Elastic Elasticsearch up to 8.19.16/9.3.5/9.4.2. This issue affects some unknown processing of the component Machine Handler. This manipulation causes allocation of resources.
This vulnerability appears as CVE-2026-56149. The attack may be initiated remotely. There is no available exploit.
GHSA
Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130).
ghsa_unreviewed·2026-07-01
CVE-2026-56149 [MEDIUM] CWE-770 Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130).
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-07-01
Published