CVE-2026-78424
Received Received - Intake

Command Injection in NeuVector

Publication date: 2026-09-28

Last updated on: 2026-09-28

Assigner: SUSE

Description
Improper parameter handling in NeuVector allows any authenticated user who holds the namespaced Runtime Policies (write) permission or anyone with access to NeuVector’s internal gRPC certificate key pair the ability to inject OS commands in the privileged enforcer container, which can lead to the complete compromise of the worker node. This affects NeuVector 5.4 before 5.4.11, NeuVector 5.5 before 5.5.4, NeuVector 5.6 before 5.6.2 and potentially older versions.

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Meta Information

Published
2026-09-28
Last Modified
2026-09-28
Generated
2026-09-28
AI Q&A
2026-09-28
EPSS Evaluated
N/A
NVD
CVE-2026-78424
EUVD
EUVD-2026-88224

Affected Vendors & Products

Showing 7 associated CPEs
Vendor Product Version / Range
neuvector neuvector to 5.4.11 (exc)
neuvector neuvector to 5.5.4 (exc)
neuvector neuvector to 5.6.2 (exc)
neuvector neuvector *
neuvector neuvector 5.4
neuvector neuvector 5.5
neuvector neuvector to 5.6.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

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Executive Summary

This is a critical OS command injection vulnerability in NeuVector's Packet-Capture Filter. It allows authenticated users with specific permissions or access to internal keys to inject malicious OS commands into the privileged enforcer container. This can lead to complete compromise of the Kubernetes worker node.

Detection Guidance

To detect this vulnerability, check NeuVector versions for affected releases (5.4 before 5.4.11, 5.5 before 5.5.4, 5.6 before 5.6.2). Inspect logs for unusual command execution patterns in the enforcer container. Verify if any authenticated users have namespaced Runtime Policies (write) permissions or access to internal gRPC certificate key pairs.

Impact Analysis

If exploited, this vulnerability could allow attackers to execute arbitrary commands on your Kubernetes nodes with high privileges. This may result in full control over the node, data theft, system manipulation, or disruption of services running on the affected cluster.

Compliance Impact

This vulnerability could lead to unauthorized access and data breaches, violating compliance requirements under GDPR and HIPAA. It may result in data exposure, integrity loss, and availability issues, potentially leading to regulatory penalties and legal consequences.

Mitigation Strategies

Upgrade NeuVector to a patched version (5.6.2 or later, 5.5.4, or 5.4.11). If upgrading is not immediately possible, restrict access to namespaced Runtime Policies (write) permissions and secure NeuVector’s internal gRPC certificate key pair. Monitor worker nodes for signs of compromise.

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