# CVE-2025-68663: Outline has a suspended user authentication bypass via WebSocket connections

> Suspended users can bypass authentication to maintain WebSocket connections and receive sensitive operational updates in Outline.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Feb 2026
- **Updated:** 12 Feb 2026
- **Also known as:** GHSA-mx2c-3g2x-5m9m

## What is CVE-2025-68663?

CVE-2025-68663 is a medium-severity authentication bypass vulnerability in outline, published on 11 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a vulnerability was found in Outline's WebSocket authentication mechanism that allows suspended users to maintain or establish real-time WebSocket connections and continue receiving sensitive operational updates after their account has been suspended. This vulnerability is fixed in 1.1.0.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2025-68663?

It affects 1 product.


Products: Getoutline Outline.

## How do I fix CVE-2025-68663?

No fix has been published for CVE-2025-68663 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-68663 being exploited?

There is no known exploitation of CVE-2025-68663 in the wild and no public exploit code.

## Other vulnerabilities in 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-2023-54331](https://insights.sbomify.com/CVE-2023-54331/): Outline 1.6.0 - Unquoted Service Path (high 8.5)
- [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)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-68663 and fix it if it is affected.

What it is: CVE-2025-68663 is a medium-severity authentication bypass vulnerability in outline, published on 11 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-68663 in the wild and no public exploit code.

Affected product: 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-2025-68663/ (Markdown: https://insights.sbomify.com/CVE-2025-68663/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-68663
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-68663
- OSV: https://osv.dev/vulnerability/CVE-2025-68663

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-68663/
Summaries are generated and may contain mistakes; the official description above is the record.