๐Ÿ” CVE Alert

CVE-2026-26931

MEDIUM 5.7

Memory Allocation with Excessive Size Value in Metricbeat Leading to Denial of Service

CVSS Score
5.7
EPSS Score
0.0%
EPSS Percentile
0th

Memory Allocation with Excessive Size Value (CWE-789) in the Prometheus remote_write HTTP handler in Metricbeat can lead Denial of Service via Excessive Allocation (CAPEC-130).

CWE CWE-789
Vendor elastic
Product metricbeat
Published Mar 19, 2026
Last Updated Mar 19, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

Elastic / Metricbeat
8.0.0 โ‰ค 8.19.12

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
discuss.elastic.co: https://discuss.elastic.co/t/metricbeat-8-19-13-9-2-5-security-update-esa-2026-09/385532