CVE-2026-82294

Analyzed Analyzed - Analysis Complete

Uncontrolled Resource Consumption in Elasticsearch

Publication date: 2026-09-26

Last updated on: 2026-09-29

Assigner: Elastic

Description

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130).

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-26

Last Modified

2026-09-29

Generated

2026-10-17

AI Q&A

2026-09-27

EPSS Evaluated

2026-10-16

NVD

CVE-2026-82294

Affected Vendors & Products

Vendor	Product	Version / Range
elastic	elasticsearch	From 8.0.0 (inc) to 8.19.21 (exc)
elastic	elasticsearch	From 9.0.0 (inc) to 9.4.6 (exc)
elastic	elasticsearch	From 9.5.0 (inc) to 9.5.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This vulnerability is an uncontrolled resource consumption issue in Elasticsearch that can cause a denial of service through excessive allocation. It is tracked under CWE-400 and CAPEC-130, meaning an attacker could exploit it to consume too many system resources, making the service unavailable.

Detection Guidance

Detection requires monitoring for excessive resource consumption in Elasticsearch. Check system metrics like CPU, memory, and disk usage during normal operations. Look for unusual spikes in allocation requests or failed allocation attempts in Elasticsearch logs. Use tools like top, htop, or Elasticsearch's own APIs to monitor node health and resource usage.

Impact Analysis

If exploited, this vulnerability could lead to service disruption by consuming excessive resources, causing Elasticsearch to become slow or unresponsive. This may affect applications relying on Elasticsearch for search or data processing.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by enabling denial-of-service attacks that disrupt service availability. GDPR requires data availability controls, while HIPAA mandates safeguards against service disruptions. The uncontrolled resource consumption may lead to prolonged downtime, potentially violating these requirements.

Mitigation Strategies

Update Elasticsearch to the latest patched version immediately to address uncontrolled resource consumption risks.

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