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.
Published: 2026-09-28
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Remote Code Execution
Action: Immediate Patch
AI Analysis

Impact

Improper handling of packet‑capture filter parameters in NeuVector allows an authenticated user who has write permission on namespaced Runtime Policies or an attacker with access to the internal gRPC certificate key pair to inject arbitrary operating‑system commands into the privileged enforcer container. The flaw is an OS command injection that can be leveraged to run code with full node privileges, potentially compromising the confidentiality, integrity, and availability of the Kubernetes worker node.

Affected Systems

All pre‑5.4.11, pre‑5.5.4, and pre‑5.6.2 releases of SUSE NeuVector, and any older unsupported versions.

Risk and Exploitability

The CVSS score of 8.8 indicates a high‑severity vulnerability. No EPSS score is disclosed, but exploitation requires authenticated access or possession of the gRPC credentials, limiting the attack surface. The flaw is not presently listed in the CISA KEV catalog. An attacker who meets the prerequisites could exploit the flaw remotely over the gRPC interface, causing the component to execute injected commands and fully compromise the node.

Generated by OpenCVE AI on September 28, 2026 at 13:27 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade NeuVector to the latest release (5.4.11 or newer, 5.5.4 or newer, 5.6.2 or newer) to eliminate the command injection flaw.
  • Restrict runtime policy write permissions to trusted administrators and remove unnecessary namespace‑level permissions for untrusted users.
  • Protect the internal gRPC certificate key pair by enforcing strict file‑system access controls and ensuring it is not exposed to non‑privileged processes or users.

Generated by OpenCVE AI on September 28, 2026 at 13:27 UTC.

Tracking

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Advisories

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History

Mon, 28 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 28 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
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.
Title OS Command Injection in Packet-Capture (Sniffer) Filter leading to Remote Code Execution on Kubernetes Nodes
First Time appeared Suse
Suse neuvector
Weaknesses CWE-78
CPEs cpe:2.3:a:suse:neuvector:*:*:*:*:*:*:*:*
Vendors & Products Suse
Suse neuvector
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: suse

Published:

Updated: 2026-09-29T03:55:17.618Z

Reserved: 2026-08-24T15:33:13.665Z

Link: CVE-2026-78424

cve-icon Vulnrichment

Updated: 2026-09-28T18:08:08.565Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-28T12:17:40.897

Modified: 2026-09-29T21:32:59.833

Link: CVE-2026-78424

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-28T15:15:03Z

Weaknesses
  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')