Vulnerability Description
MagicMirror² is an open source modular smart mirror platform. Prior to 2.37.0, the ADD_CALENDAR handler in defaultmodules/calendar/node_helper.js accepts an attacker-controlled URL, authentication data, and selfSignedCert setting through the unauthenticated Socket.IO namespace /calendar. The handler passes these fields to CalendarFetcher, causing a server-side request without SSRF validation and optionally disabling TLS verification. When the response is valid iCal, CALENDAR_EVENTS returns parsed event data to the attacker, allowing internal-service response data to be exfiltrated; other responses still provide a blind request and timing primitive. This issue is fixed in version 2.37.0.
Related Weaknesses (CWE)
References
- https://github.com/MagicMirrorOrg/MagicMirror/commit/58c2a5e675a7d367b64d72e1d35
- https://github.com/MagicMirrorOrg/MagicMirror/pull/4169
- https://github.com/MagicMirrorOrg/MagicMirror/releases/tag/v2.37.0
- https://github.com/MagicMirrorOrg/MagicMirror/security/advisories/GHSA-w6x9-28jw
FAQ
What is CVE-2026-63643?
CVE-2026-63643 is a documented vulnerability. MagicMirror² is an open source modular smart mirror platform. Prior to 2.37.0, the ADD_CALENDAR handler in defaultmodules/calendar/node_helper.js accepts an attacker-controlled URL, authentication dat...
How severe is CVE-2026-63643?
CVSS scoring is not yet available for CVE-2026-63643. Check NVD for updates.
Is there a patch for CVE-2026-63643?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.