cilium hubble up to 1.17.1 CLI injection

Summaryinfo

A vulnerability described as problematic has been identified in cilium hubble up to 1.17.1. Affected by this vulnerability is an unknown functionality of the component CLI. The manipulation results in injection. This vulnerability is cataloged as CVE-2025-48056. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in cilium hubble up to 1.17.1. It has been classified as problematic. Affected is an unknown code block of the component CLI. The manipulation with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on integrity. CVE summarizes:

Hubble is a fully distributed networking and security observability platform for cloud native workloads. Prior to version 1.17.2, a network attacker could inject malicious control characters into Hubble CLI terminal output, potentially leading to loss of integrity and manipulation of the output. This could be leveraged to conceal log entries, rewrite output, or even make the terminal temporarily unusable. Exploitation of this attack would require the victim to be monitoring Kafka traffic using Layer 7 Protocol Visibility at the time of the attack. The issue is patched in Hubble CLI v1.17.2. Hubble CLI users who are unable to upgrade can direct their Hubble flows to a log file and inspect the output within a text editor.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2025-48056 since 05/15/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1055.

Upgrading to version 1.17.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-15956). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• cilium

Name

• hubble

Version

• 1.17.0
• 1.17.1

Website

• Product: https://github.com/cilium/hubble/

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Once again VulDB remains the best source for vulnerability data.

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