Memory Allocation Vulnerability in Elasticsearch by Elastic
CVE-2025-68390

4.9MEDIUM

Key Information:

Vendor

Elastic
Status
Elastic
Vendor
CVE Published:
18 December 2025

What is CVE-2025-68390?

A vulnerability in Elasticsearch allows authenticated users with snapshot restore privileges to exploit improper resource management. By sending specially crafted HTTP requests, these users can trigger excessive memory allocation, leading to denial of service (DoS) conditions. This issue underscores the need for tightly controlled resource allocation and effective throttling mechanisms to prevent abuse and ensure the stability of the Elasticsearch environment.

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Affected Version(s)

Elasticsearch 7.0.0 <= 7.17.29

Elasticsearch 8.0.0 <= 8.19.7

Elasticsearch 9.0.0 <= 9.1.7

References

https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-a...

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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