Input Validation Flaw in Hubble CLI from Cilium Affects Network Security Operations

CVE-2025-48056

What is CVE-2025-48056?

A vulnerability exists within Hubble CLI, which can be exploited by network attackers to inject malicious control characters into terminal output. This flaw can compromise log integrity, allowing attackers to conceal important log entries or alter output, potentially leading to a disrupted terminal experience. Exploitation requires the victim to be actively monitoring Kafka traffic using Layer 7 Protocol Visibility during the attack. This issue has been addressed in version 1.17.2 of Hubble CLI. Users unable to upgrade are advised to redirect Hubble flows to a log file for secure output inspection.

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