# CVE-2026-78424: OS Command Injection in Packet-Capture (Sniffer) Filter leading to Remote Code Execution on Kubernetes Nodes

> Authenticated users can inject OS commands into privileged containers, leading to remote code execution and full compromise of Kubernetes worker nodes.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 28 Sep 2026
- **Updated:** 29 Sep 2026
- **Also known as:** GHSA-vr77-8vmq-qfmj

## What is CVE-2026-78424?

CVE-2026-78424 is a high-severity command injection vulnerability in SUSE NeuVector, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-78 (Improper Neutralization of Special Elements used in an OS Command)

## Which versions are affected by CVE-2026-78424?


## How do I fix CVE-2026-78424?

No fix has been published for CVE-2026-78424 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-78424 being exploited?

There is no known exploitation of CVE-2026-78424 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-78424 and fix it if it is affected.

What it is: CVE-2026-78424 is a high-severity command injection vulnerability in SUSE NeuVector, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-78424 in the wild and no public exploit code.

Affected product: SUSE NeuVector. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-78424/ (Markdown: https://insights.sbomify.com/CVE-2026-78424/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-78424
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-78424
- OSV: https://osv.dev/vulnerability/CVE-2026-78424

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-78424/
Summaries are generated and may contain mistakes; the official description above is the record.