# CVE-2026-63641: MagicMirror Socket.IO module namespaces bypass configured IP whitelist and allow unauthenticated server-side actions

> Unauthenticated attackers can bypass IP whitelists to execute commands or access internal services via Socket.IO in MagicMirror.

- **Severity:** Low 2.3 (`CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Aug 2026
- **Updated:** 18 Aug 2026
- **Also known as:** GHSA-w26r-fwg8-rcp3

## What is CVE-2026-63641?

CVE-2026-63641 is a low-severity missing authorization vulnerability in MagicMirrorOrg MagicMirror, published on 18 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

MagicMirror² is an open source modular smart mirror platform. Prior to 2.37.0, MagicMirror applies ipWhitelist only as Express middleware, while the Socket.IO server in js/server.js is attached directly to the HTTP server without equivalent IP allowlist, origin, or namespace authentication checks. In a documented non-loopback deployment that relies on ipWhitelist, an unauthenticated adjacent-network client can connect directly to module Socket.IO namespaces, and js/node_helper.js dispatches arbitrary events and payloads to socketNotificationReceived. The default newsfeed and calendar helpers can make server-side requests to attacker-selected URLs, while the default updatenotification helper can reach child_process.exec when a third-party module update is pending and the attacker supplies an update command through the socket CONFIG path. This can expose internal services, manipulate module-helper state, and conditionally execute commands. This issue is fixed in version 2.37.0.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2026-63641?

2 open source packages ship an affected version, including magicmirror.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `magicmirror` | npm | All versions | 2.37.0 |
| `magicmirror` | npm | All versions | 2.37.0 |

## How do I fix CVE-2026-63641?

Upgrade magicmirror to 2.37.0 or later.

## Is CVE-2026-63641 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-63641 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-63641 and fix it if it is affected.

What it is: CVE-2026-63641 is a low-severity missing authorization vulnerability in MagicMirrorOrg MagicMirror, published on 18 Aug 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-2026-63641 exists.

Affected packages and fixed versions:
- magicmirror (npm): affected all versions; fixed in 2.37.0
- magicmirror (npm): affected all versions; fixed in 2.37.0

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-2026-63641/ (Markdown: https://insights.sbomify.com/CVE-2026-63641/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-63641
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-63641
- OSV: https://osv.dev/vulnerability/CVE-2026-63641

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-63641/
Summaries are generated and may contain mistakes; the official description above is the record.