{"id":"CVE-2026-63640","sourceIdentifier":"security-advisories@github.com","published":"2026-08-18T18:19:11.800","lastModified":"2026-10-22T22:10:00.250","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"MagicMirror² is an open source modular smart mirror platform. Prior to 2.37.0, when hideConfigSecrets is enabled, the catch-all socket dispatcher in js/node_helper.js passes every inbound object payload through replaceSecretPlaceholder in js/server_functions.js before invoking socketNotificationReceived. A client connected to a loaded module namespace can submit a SECRET_API_KEY placeholder, causing the server to replace it with the corresponding process environment value. The default weather helper accepts INIT_WEATHER, copies the attacker-controlled instanceId, and returns it in WEATHER_ERROR, providing an echo path for the expanded secret. This reverses the intended one-way redaction boundary and can disclose API tokens, credentials, or service keys stored in SECRET_ variables. This issue is fixed in version 2.37.0."},{"lang":"es","value":"MagicMirror² es una plataforma de espejo inteligente modular de código abierto. Antes de la versión 2.37.0, cuando hideConfigSecrets está habilitado, el despachador de sockets ’catch-all’ en js/node_helper.js pasa cada carga útil de objeto entrante a través de replaceSecretPlaceholder en js/server_functions.js antes de invocar socketNotificationReceived. Un cliente conectado a un espacio de nombres de módulo cargado puede enviar un marcador de posición SECRET_API_KEY, haciendo que el servidor lo reemplace con el valor correspondiente del entorno del proceso. El asistente de clima predeterminado acepta INIT_WEATHER, copia el instanceId controlado por el atacante y lo devuelve en WEATHER_ERROR, proporcionando una ruta de eco para el secreto expandido. Esto invierte el límite de redacción unidireccional previsto y puede divulgar tokens de API, credenciales o claves de servicio almacenadas en variables SECRET_. Este problema se soluciona en la versión 2.37.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"MagicMirrorOrg","product":"MagicMirror","versions":[{"version":"< 2.37.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-18T17:56:24.747800Z","id":"CVE-2026-63640","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-200"}]}],"references":[{"url":"https://github.com/MagicMirrorOrg/MagicMirror/commit/ca7b752025962441196e148f8c1bc04b90117979","source":"security-advisories@github.com"},{"url":"https://github.com/MagicMirrorOrg/MagicMirror/pull/4184","source":"security-advisories@github.com"},{"url":"https://github.com/MagicMirrorOrg/MagicMirror/releases/tag/v2.37.0","source":"security-advisories@github.com"},{"url":"https://github.com/MagicMirrorOrg/MagicMirror/security/advisories/GHSA-q4gh-4ffp-5cg8","source":"security-advisories@github.com"},{"url":"https://github.com/MagicMirrorOrg/MagicMirror/security/advisories/GHSA-q4gh-4ffp-5cg8","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}