GCVE-110-OSM-2026-9560

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published August 2, 2026

Malicious package detected. Behaviors: data exfiltration. ENTRY mcp/index.js (bin: index.js) DESTINATION - 3 exfil (reconstructed, custom-c2) - 1 c2 (domains) (values recorded in verified_iocs) EXFIL - Environment Variable Exfiltration in mcp/lib/memory.js: "process.env.MNEMOX_API_URL || 'https://mnemox-production.up.railway.app'; functi..." - Data Encoding for Exfiltration in background.js: "encodeURIComponent(uuid" OBFUSCATION - recovered 1 urls, 1 domains from decoded/deobfuscated content ADDITIONAL FINDINGS - Reconstructed Obfuscated URL in background.js: "https://mnemox-production.up.railway.app/traces?limit=50" - Clipboard Access in ui/coach.js: "navigator.clipboard.writeText" PAYLOAD FILES mcp/lib/memory.js (+ background.js)

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown	mnemox-extension	all (affected)	—

References

Malicious npm package: mnemox-extension

advisory

vendor

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