CVE-2026-56149
Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service
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.
INFO
Published Date :
July 1, 2026, 4:21 p.m.
Last Modified :
July 1, 2026, 4:21 p.m.
Remotely Exploit :
Yes !
Source :
elastic
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 271b6943-45a9-4f3a-ab4e-976f3fa05b5a | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Elasticsearch to the latest secure version.
- Configure resource limits for machine learning requests.
- Monitor system resources for excessive consumption.
- Restrict elevated privileges for sensitive operations.
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