CVE
CVE-2026-49352
9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass
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 authtoken cookie when JWTSECRET was unset. This issue is fixed in version 0.4.44
Package Versions Affected
Package Version
patch Availability
No items found.
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-
Related Resources
No items found.
References
https://github.com/decolua/9router/releases/tag/v0.4.44, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49352.json, https://github.com/decolua/9router/security/advisories/GHSA-jphh-m39h-6gwx, https://nvd.nist.gov/vuln/detail/CVE-2026-49352, https://github.com/decolua/9router/commit/fe3ce25ae3cda48c0702c2d452e17f6ec214009d