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Metricbeat affected by multiple denial of service vulnerabilities

Moderate severity GitHub Reviewed Published Jan 13, 2026 to the GitHub Advisory Database • Updated Jan 22, 2026

Package

gomod github.com/elastic/beats/v7 (Go)

Affected versions

< 7.0.0-alpha2.0.20251217054608-6e42552a23ce
>= 8.0.0, < 8.19.10
>= 9.0.0, < 9.1.10
>= 9.2.0, < 9.2.4

Patched versions

7.0.0-alpha2.0.20251217054608-6e42552a23ce
8.19.10
9.1.10
9.2.4

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.

References

Published by the National Vulnerability Database Jan 13, 2026
Published to the GitHub Advisory Database Jan 13, 2026
Reviewed Jan 22, 2026
Last updated Jan 22, 2026

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(4th percentile)

Weaknesses

Improper Validation of Array Index

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array. Learn more on MITRE.

CVE ID

CVE-2026-0528

GHSA ID

GHSA-w2gr-585j-r428

Source code

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