Uncontrolled Resource Consumption in Elasticsearch by Elastic
CVE-2026-94396

6.5MEDIUM

Key Information:

Vendor

Elastic

Status
Vendor
CVE Published:
26 September 2026

What is CVE-2026-94396?

A vulnerability within Elasticsearch allows for uncontrolled resource consumption, which can lead to denial of service conditions. This issue arises from excessive resource allocation, enabling malicious actors to exploit the system's limits, potentially disrupting service availability and impacting overall application performance. Users are encouraged to apply the necessary security updates to mitigate this issue.

Affected Version(s)

Elasticsearch 9.2.0 <= 9.4.6

Elasticsearch 9.5.0 <= 9.5.3

References

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

.