Denial of Service Vulnerability in Elasticsearch by Elastic
CVE-2026-82300

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Elastic
Vendor
CVE Published:
26 September 2026

What is CVE-2026-82300?

An uncontrolled resource consumption vulnerability in Elasticsearch can result in a denial of service by excessively allocating resources. This issue arises when the application fails to properly manage resource allocation, potentially leading to system instability and unavailability. As a result, organizations using Elasticsearch versions 8.19.0, 7.9.4, and 7.9.5 should take proactive steps to address this potential risk to maintain ongoing service reliability.

Affected Version(s)

Elasticsearch 8.0.0 <= 8.19.21

Elasticsearch 9.0.0 <= 9.4.7

Elasticsearch 9.5.0 <= 9.5.3

References

https://discuss.elastic.co/t/elasticsearch-8-19-22-9-4-7-...

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

.