CVE-2026-55638

HighCVSS 8.6/10Last modified Oct 25, 2026

Description

9Router is an AI router & token saver. Prior to 0.5.2, 9router protects /v1, /v1beta, /api/v1, and /api/v1beta in src/dashboardGuard.js but omits /codex before next.config.mjs rewrites /codex/* to /api/v1/responses. A remote unauthenticated attacker can send requests to /codex/* to bypass the API-key gate and cause the server to make upstream provider calls using operator-stored LLM provider credentials. This issue is fixed in version 0.5.2.

Metrics

CVSS 3.1 8.6/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jul 10, 2026
Last modified
Oct 25, 2026
NVD status
Deferred

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CVE-2026-55638: High severity, CVSS 8.6 | Vulnix