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GHSA-27qj-9gvp-8rh9

Packetbeat does not properly validate an array index in multiple protocol parser components

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-26933

Packages

EcosystemPackageAffectedFixed in
Go github.com/elastic/beats/v7 < 7.0.0-alpha2.0.20260126223743-dec1b31111ec 7.0.0-alpha2.0.20260126223743-dec1b31111ec

Details

As written in the advisory (Markdown source, shown as plain text).

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.

References

External links from the advisory. They lead to third-party sites.