TI-2026-45319 Aliases CVE-2026-63732 GHSA-qvg7-rqwf-6wmh

9router before 0.4.60 Remote Code Execution via default password

MEDIUM 44CWE-78Published 2026-07-23 · Updated 2026-07-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

9router 0.4.59 (fixed in 0.4.60) contains a chain of vulnerabilities: a hardcoded default password (123456) that authenticates any fresh installation, a bypass of the LOCAL_ONLY network gate via a spoofed Host header, and unvalidated arguments passed to child_process.spawn() when registering MCP plugins. A remote, unauthenticated attacker can log in with the default credential, spoof the Host header to reach local-only routes, and register a malicious MCP plugin (e.g. node -e <payload>) to achieve arbitrary code execution on the host operating system when the plugin's SSE endpoint is triggered.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01011 63rd percentileScored 2026-11-07

Fix Fixed 9router (decolua): 0.4.60

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
decolua	9router	before 0.4.60	0.4.60	Patch available	CNA

9router Vendordecolua Affected before 0.4.60 Fixed in 0.4.60 Patch available CNA

Remediation

Fix · CNA 9router (decolua) Fixed in 0.4.60

Timeline

2026-10-02 Threatist record created from CVE-2026-63732
2026-10-03 Alias added: GHSA-qvg7-rqwf-6wmh

References

Advisory 1

GitHub Security Advisory (GHSA-4922-8r65-fq26)

TI-2026-36526 9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass CVSS 3.1CRITICAL 9.8
TI-2026-34059 9Router: Unauthenticated Remote Code Execution via unprotected MCP custom plugin routes CVSS 3.1CRITICAL 10.0
TI-2026-44499 9Router 0.4.41 - Unauthenticated API Key Exposure via /api/usage/stats CVSS 4.0CRITICAL 9.3
TI-2026-42622 9Router 0.4.41 - Unauthenticated API Exposure via /api/providers CVSS 4.0CRITICAL 9.3
TI-2026-44500 9Router 0.4.41 - Unauthenticated Information Disclosure via API Usage Endpoints CVSS 4.0HIGH 8.7
TI-2026-40860 9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint CVSS 3.1HIGH 8.6

See all 25 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences