VDB
GCVE-110-OSM-2026-5688
GCVE-110-OSM-2026-5688
Advisory PublishedCVSS 9.6/10
Malicious package detected. Behaviors: data exfiltration, code execution, install-time execution.
Entrypoint: scripts/postinstall.cjs (install-hook: node scripts/postinstall.cjs)
Exfil: cyouc.me (custom-c2, recovery: plaintext in payload/chatroom-mcp-lite-patched.cjs)
Payload: payload/chatroom-mcp-lite-patched.cjs
Key findings:
- Environment Variable Exfiltration in payload/chatroom-mcp-lite-patched.cjs: "process.env.MCP_CLIENT_NAME || null;
if (!name) return;
try {
c..."
- Install Hook Executes Local JS File in package.json: ""postinstall": "node scripts/postinstall.cjs""
- Shell Command Execution in payload/chatroom-mcp-lite-patched.cjs: "require('child_process')"
- Data Encoding for Exfiltration in payload/chatroom-mcp-lite-patched.cjs: "encodeURIComponent(args.agent"
- Data Encoding for Exfiltration in payload/chatroom-monitor.cjs: "encodeURIComponent(name) + '-Monitor"
IOCs:
- urls: https://demo3.0x2ai.com, https://demo3.0x2ai.com**
- domains: demo3.0x2ai.com, cyouc.me
- payloadFileHash: a1abc812c52dcefeb85473275f7c1e5a86770b114767176416ed94ebe620cf00
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 | 0x2ai-demo3 | all (affected) | — |
Aliases
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