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CVE-2026-63640— MagicMirror socket payload secret placeholder expansion can disclose SECRET_* environment variables

Quick assessment

Affected
MagicMirrorOrg MagicMirror
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MagicMirror是MagicMirror社区的一款可显示天气、日历等信息的智能镜子。 MagicMirror 2.37.0之前版本存在信息泄露漏洞，该漏洞源于js/node_helper.js中的socket dispatcher在调用socketNotificationReceived前将入站对象payload传递给js/server_functions.js中的replaceSecretPlaceholder处理，导致SECRET_API_KEY占位符被替换为进程环境值，并可通过WEATHER_

CVSS 4.3 · Medium EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
MagicMirrorOrg MagicMirror < 2.37.0 affected
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I. Basic Information for CVE-2026-63640

Vulnerability Information
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Vulnerability Title
MagicMirror socket payload secret placeholder expansion can disclose SECRET_* environment variables
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
MagicMirror 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MagicMirror是MagicMirror社区的一款可显示天气、日历等信息的智能镜子。 MagicMirror 2.37.0之前版本存在信息泄露漏洞，该漏洞源于js/node_helper.js中的socket dispatcher在调用socketNotificationReceived前将入站对象payload传递给js/server_functions.js中的replaceSecretPlaceholder处理，导致SECRET_API_KEY占位符被替换为进程环境值，并可通过WEATHER_
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MagicMirrorOrg MagicMirror < 2.37.0 -

II. Public POCs for CVE-2026-63640

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III. Intelligence Information for CVE-2026-63640

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Patches & Fixes for CVE-2026-63640 (2)

Vendor Advisories for CVE-2026-63640 (1)

Vendor Pages for CVE-2026-63640 (1)

Same Patch Batch · MagicMirrorOrg · 2026-08-18 · 4 CVEs total

CVE-2026-63643 6.3 MEDIUM MagicMirror: ssrf calendar .js
CVE-2026-63642 6.3 MEDIUM MagicMirror newsfeed Socket.IO notification allows blind server-side request forgery
CVE-2026-63641 2.3 LOW MagicMirror Socket.IO module namespaces bypass configured IP whitelist and allow unauthent

IV. Related Vulnerabilities

Same product: MagicMirror
Same vendor: MagicMirrorOrg
Same weakness: CWE-200

V. Comments for CVE-2026-63640

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