# CVE-2023-54331: Outline 1.6.0 - Unquoted Service Path

> Local attackers can execute arbitrary code with elevated privileges by exploiting an unquoted service path in the Outline desktop 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:** 13 Jan 2026
- **Updated:** 5 Mar 2026
- **Also known as:** GHSA-368x-rx64-j3wc

## What is CVE-2023-54331?

CVE-2023-54331 is a high-severity vulnerability in Getoutline Outline, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

Outline 1.6.0 contains an unquoted service path vulnerability that allows local attackers to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted service path in the OutlineService executable to inject malicious code that will be executed with LocalSystem permissions.

Weakness: CWE-428 (Unquoted Search Path or Element)

## Which versions are affected by CVE-2023-54331?

It affects 1 product.


Products: Getoutline Outline.

## How do I fix CVE-2023-54331?

No fix has been published for CVE-2023-54331 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-54331 being exploited?

There is no known exploitation of CVE-2023-54331 in the wild and no public exploit code.

## Other vulnerabilities in Getoutline Outline

- [CVE-2026-33640](https://insights.sbomify.com/CVE-2026-33640/): Outline has a rate limit bypass that allows brute force of email login OTP (critical 9.1)
- [CVE-2024-37829](https://insights.sbomify.com/CVE-2024-37829/): Auth bypass in n/a (high 8.8)
- [CVE-2023-3532](https://insights.sbomify.com/CVE-2023-3532/): Cross-site Scripting (XSS) - Stored in outline/outline (high 8.5)
- [CVE-2026-24901](https://insights.sbomify.com/CVE-2026-24901/): Outline's IDOR allows unauthorized viewing and seizing of private deleted drafts (high 8.1)
- [CVE-2026-41649](https://insights.sbomify.com/CVE-2026-41649/): Outline has IDOR in document share creation that allows unauthorized access to private documents across workspaces (high 7.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-54331 and fix it if it is affected.

What it is: CVE-2023-54331 is a high-severity vulnerability in Getoutline Outline, published on 13 Jan 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-2023-54331 in the wild and no public exploit code.

Affected product: Getoutline Outline. 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-2023-54331/ (Markdown: https://insights.sbomify.com/CVE-2023-54331/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-54331
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-54331
- OSV: https://osv.dev/vulnerability/CVE-2023-54331

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-54331/
Summaries are generated and may contain mistakes; the official description above is the record.