CVE-2026-0528

Improper Input Validation in Metricbeat Leading to Denial of Service

Published: Jan 13, 2026Updated: Jan 22, 2026 Sources: CVE List NVD GHSACWE-129

6.5MEDIUM

Description

Improper Validation of Array Index (CWE-129) exists in Metricbeat can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed payloads sent to the Graphite server metricset or Zookeeper server metricset. Additionally, Improper Input Validation (CWE-20) exists in the Prometheus helper module that can allow an attacker to cause a Denial of Service through Input Data Manipulation (CAPEC-153) via specially crafted, malformed metric data.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:AAttack Vector

Adjacent

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-129

Affected Products

Elastic

commercial·USaka elasticsearch co., elastic.co

package-ecosystem

github.com/elastic/beats/v7

OSS Libraries

Exploitability

Official Patch Available

References

https://discuss.elastic.co/t/metricbeat-8-19-10-9-1-10-9-2-4-security-update-esa-2026-01/384519

discuss.elastic.co

https://nvd.nist.gov/vuln/detail/CVE-2026-0528

nvd.nist.gov

https://github.com/elastic/beats/commit/0025fbfe668936eb8fa65b838508faf3c3c04387

github.com

and 3 more references View all →

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