Uncontrolled Resource Consumption in Elasticsearch by Elastic
CVE-2026-82294

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Elastic
Vendor
CVE Published:
26 September 2026

What is CVE-2026-82294?

A vulnerability in Elasticsearch allows for uncontrolled resource consumption which can ultimately lead to a denial of service. This occurs due to excessive allocation of resources, which can be exploited by malicious users to overwhelm the system.

Affected Version(s)

Elasticsearch 8.0.0 <= 8.19.20

Elasticsearch 9.0.0 <= 9.4.5

Elasticsearch 9.5.0 <= 9.5.2

References

https://discuss.elastic.co/t/elasticsearch-8-19-21-9-4-6-...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.