CVE-2026-42281

MagicMirror²: Unauthenticated SSRF via /cors endpoint

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.

Affected

MagicMirrorOrg · MagicMirror

CVSS v4.0 GITHUB

9.2 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v4.0 GitHub

9.2 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS v3.1 NVD

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS

1.68% chance of exploitation in the next 30 days, 77th percentile

Nuclei

critical · CWE-918

Published

2026-05-14

Proof-of-concept exploits (2)

• advisories/GHSA-ph6f-2cvq-79hq
• Astaruf/CVE-2026-422810★ · 2026-05-04

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-42281.yaml

Security advisories

• MagicMirrorOrg/MagicMirror/security/advisories/GHSA-ph6f-2cvq-79hq

References

• CVE Record
• NVD entry

Related

• CVE-2020-13654
• CVE-2026-40487
• CVE-2026-41653
• CVE-2026-44590