CVE-2026-0528 MEDIUM

CVE-2026-0528: Improper Input Validation in Metricbeat Leading to Denial of Service

Vendor Elastic
Product Metricbeat
Weakness CWE-129
Published January 13, 2026
Last update January 13, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

January 13, 2026 CVE published
January 13, 2026 Record updated