CVE-2026-49352

CRITICAL

9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass

Title source: cna
STIX 2.1

Description

9Router is an AI router & token saver. From 0.2.21 until 0.4.44, 9Router used the hardcoded fallback JWT secret 9router-default-secret-change-me in src/app/api/auth/login/route.js, src/middleware.js, and later src/lib/auth/dashboardSession.js, allowing attackers to forge an auth_token cookie when JWT_SECRET was unset. This issue is fixed in version 0.4.44

References (3)

Core 3

Scores

CVSS v3 9.8
EPSS 0.0044
EPSS Percentile 35.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable yes
Technical Impact total

Details

CWE
CWE-798
Status published
Products (1)
decolua/9router >= 0.2.21, < 0.4.44
Published Jul 15, 2026
Tracked Since Jul 16, 2026