# CVE-2026-78424: NeuVector OS command injection in packet-capture filter

Source: https://junglewise.ai/threats/cve-2026-78424-improper-parameter-handling-in-neuvector-allows-any-authenticated  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-28. Updated: 2026-09-28  
License: CC BY 4.0 with a link back

CVE-2026-78424 · Severity: high · CVSS 8.8 · Published 2026-09-28

NeuVector is a Kubernetes security platform that protects containerized workloads. An authenticated attacker with specific permissions can inject arbitrary OS commands into the privileged container enforcer, gaining complete control of worker nodes and exposing all cluster data. The vulnerability affects multiple versions and requires either authenticated access with Runtime Policies write permission or access to internal gRPC certificates.

Technologies: [Suse NeuVector](https://junglewise.ai/threats/technologies/neuvector). Vendors: [Suse](https://junglewise.ai/threats/vendors/suse).

## Quick answers

**Is CVE-2026-78424 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-78424 being exploited in the wild.

**How severe is CVE-2026-78424?** High severity, with a CVSS score of 8.8, published 28 September 2026.

**Which products and versions are affected?** Suse NeuVector 5.4 before 5.4.11, 5.5 before 5.5.4, 5.6 before 5.6.2, and potentially older versions.

**Is there a fix for CVE-2026-78424?** A patch was published on 2026-09-16: patches released for versions 5.6.2, 5.5.4, 5.4.11 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-78424 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-78424?** Check whether you run Suse NeuVector at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Improper parameter handling in the packet-capture (sniffer) filter allows OS command injection in the privileged enforcer container. Attack vectors include: (1) any authenticated user with namespaced Runtime Policies (write) permission, or (2) anyone with access to NeuVector's internal gRPC certificate key pair. Successful exploitation leads to arbitrary code execution with container privileges and complete worker node compromise. Patches are available in versions 5.6.2, 5.5.4, 5.4.11 and above.

## Affected products

- SUSE NeuVector 5.4 before 5.4.11, 5.5 before 5.5.4, 5.6 before 5.6.2, and potentially older versions

## Timeline

- 2026-09-28: disclosed
- 2026-09-16: patched: patches released for versions 5.6.2, 5.5.4, 5.4.11

## References

- [https://github.com/neuvector/neuvector/security/advisories/GHSA-vr77-8vmq-qfmj](https://github.com/neuvector/neuvector/security/advisories/GHSA-vr77-8vmq-qfmj)

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