CVE-2026-49352: critical vulnerability in decolua 9router
9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass
Published · Updated
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.8epss 0.6%
from disclosure to weapon0 days
Published on NVDJul 15
1st PoCJul 6
exploitation probability
0.6%top 52% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
decolua · 9routerpublic PoCs found — 1
githubgithub.com/covepseng/cve-2026-49352-poc★ 1⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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