# CVE-2026-11318: Deskin 3.3.4.3 XPC Service Privilege Escalation via Unauthenticated Installer

> Local attackers can escalate privileges to root by exploiting an unauthenticated XPC service in the Deskin macOS application.

- **Severity:** High 8.5 (`CVSS:4.0/AV:L/AC:L/AT:N/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:** 8 Oct 2026
- **Updated:** 9 Oct 2026
- **Also known as:** GHSA-hvrh-p54p-hg8c

## What is CVE-2026-11318?

CVE-2026-11318 is a high-severity vulnerability in Zuler Technology DeskIn, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Deskin through 3.3.4.3 contains a privilege escalation vulnerability in the com.deskin.service.installer XPC service that allows local unprivileged attackers to execute arbitrary installer packages as root by connecting to the root-owned service without authentication. Attackers can invoke the privileged installer method to run an attacker-supplied installer, achieving full root compromise of the macOS host.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-11318?


## How do I fix CVE-2026-11318?

No fix has been published for CVE-2026-11318 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-11318 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11318 exists.

Public exploit code:

- Local Privilege Escalation (LPE) Vulnerabilities in DeskIn macOS Client (github_poc): https://github.com/Cr0wld3r/CVE-2026-11318

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11318 and fix it if it is affected.

What it is: CVE-2026-11318 is a high-severity vulnerability in Zuler Technology DeskIn, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11318 exists.

Affected product: Zuler Technology DeskIn. 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-2026-11318/ (Markdown: https://insights.sbomify.com/CVE-2026-11318/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11318
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11318
- OSV: https://osv.dev/vulnerability/CVE-2026-11318

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11318/
Summaries are generated and may contain mistakes; the official description above is the record.