# CVE-2026-53694: Potential local privileges escalation through argument injection in the nxchmod.sh script

> Local attackers can escalate privileges via argument injection in the nxchmod.sh script of NoMachine remote desktop software.

- **Severity:** High 7.3 (`CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jun 2026
- **Updated:** 7 Jul 2026
- **Also known as:** GHSA-pph3-cx78-q9jc

## What is CVE-2026-53694?

CVE-2026-53694 is a high-severity command injection vulnerability in NoMachine, published on 10 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Nomachine allows Argument Injection.This issue affects Nomachine: before 9.5.7, before 8.23.2.

Weakness: CWE-88 (Improper Neutralization of Argument Delimiters in a Command)

## Which versions are affected by CVE-2026-53694?


## How do I fix CVE-2026-53694?

No fix has been published for CVE-2026-53694 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-53694 being exploited?

There is no known exploitation of CVE-2026-53694 in the wild and no public exploit code.

Public exploit code:

- https://github.com/do4choo/CVE-2026-53694-NoMachine-LPE (github_poc): https://github.com/do4choo/CVE-2026-53694-NoMachine-LPE

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-53694 and fix it if it is affected.

What it is: CVE-2026-53694 is a high-severity command injection vulnerability in NoMachine, published on 10 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-53694 in the wild and no public exploit code.

Affected product: NoMachine. 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-2026-53694/ (Markdown: https://insights.sbomify.com/CVE-2026-53694/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-53694
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-53694
- OSV: https://osv.dev/vulnerability/CVE-2026-53694

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-53694/
Summaries are generated and may contain mistakes; the official description above is the record.