GitHub Advisoryadvisory · Go

GHSA-27qj-9gvp-8rh9 Packetbeat does not properly validate an array index in multiple protocol parser components

MEDIUM Published 2026-03-19 Modified 2026-03-19 Official page ↗
Aliases
CVE-2026-26933
Ecosystem
Go
Packages
github.com/elastic/beats/v7
Severity
Moderate
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-129
Reviewed
2026-03-19

Affected packages

• Go github.com/elastic/beats/v7: < 7.0.0-alpha2.0.20260126223743-dec1b31111ec → fixed in 7.0.0-alpha2.0.20260126223743-dec1b31111ec

Description

Improper Validation of Array Index (CWE-129) in multiple protocol parser components in Packetbeat can lead Denial of Service via Input Data Manipulation (CAPEC-153). An attacker with the ability to send specially crafted, malformed network packets to a monitored network interface can trigger out-of-bounds read operations, resulting in application crashes or resource exhaustion. This requires the attacker to be positioned on the same network segment as the Packetbeat deployment or to control traffic routed to monitored interfaces.

Related

Alias · CVE (1)

  • CVE-2026-26933 Improper Validation of Array Index (CWE-129) in multiple protocol parser components in Packetbeat can lead Denial of Service via Input Data… vulnerability

Weakness · CWE (1)

  • CWE-129 Improper Validation of Array Index weakness

References