Resource Allocation Vulnerability in Filebeat by Elastic
CVE-2026-78588

6.5MEDIUM

Key Information:

Vendor

Elastic
Status
Filebeat
Vendor
CVE Published:
2 September 2026

What is CVE-2026-78588?

A vulnerability in Filebeat allows attackers to exhaust memory resources by sending specially crafted compressed requests to the HTTP ingestion endpoint. This can lead to a denial of service, where legitimate user requests cannot be processed due to resource exhaustion. Proper mitigation strategies should be employed to prevent attackers from exploiting this vulnerability.

Affected Version(s)

Filebeat 8.0.0 <= 8.19.17

Filebeat 9.0.0 <= 9.3.0

References

https://discuss.elastic.co/t/filebeat-8-19-18-9-3-1-secur...

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

.