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CVE-2026-62312: 9router < 0.5.2
CVE-2026-62312. CVSS 3.1 base score 8.8 (HIGH, Vendor/CNA). EPSS 0.01297 (percentile 0.70198), scored 24-Oct-2026.
Affected technology
9router · < 0.5.2
decolua
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
A remote authenticated attacker can achieve arbitrary code execution on the host operating system by combining a Host header bypass of localhost-only routes with unvalidated MCP plugin args passed to child_process.spawn(), allowing malicious custom plugins to execute commands through /api/mcp//sse. Vendor/CNA’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.
- CWE
- CWE-78
- CCR priority
- 35.5 /100 (P4)
- CVSS 3.1
- 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
- EPSS
- 0.01297 · percentile 0.70198 · 2026-10-24
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-62312.html