CVE-2026-42281 MagicMirror²: Unauthenticated SSRF via /cors endpoint
Unauthenticated attackers can force the server to make arbitrary HTTP requests and exfiltrate secrets via environment variable expansion in the /cors endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-42281?
CVE-2026-42281 is a critical server-side request forgery vulnerability in MagicMirrorOrg MagicMirror, published on 14 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MagicMirror² is an open source modular smart mirror platform. Prior to 2.36.0, an unauthenticated Server-Side Request Forgery (SSRF) vulnerability in the /cors endpoint allows any remote attacker to force the MagicMirror² server to perform arbitrary HTTP requests to internal networks, cloud metadata services, and localhost services. The endpoint also expands environment variable placeholders (**VAR_NAME**), enabling exfiltration of server-side secrets. This vulnerability is fixed in 2.36.0.
Weakness: CWE-918
Which versions are affected by CVE-2026-42281?
2 open source packages ship an affected version, including magicmirror. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
magicmirror npm | All versions | 2.36.0 |
magicmirror npm | All versions | 2.36.0 |
Products include Magicmirror Magicmirror.
How do I fix CVE-2026-42281?
Upgrade magicmirror to 2.36.0 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-42281 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42281 exists.
Public exploit code: 1 Nuclei template and 1 proofs of concept on GitHub.
Sources
Also known as GHSA-ph6f-2cvq-79hq.