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CVE-2026-49352

9Router: Hardcoded Default fallback JWT Secret Allows Authentication Bypass

Published: Jul 15, 2026Updated: Jul 16, 2026 Sources: CVE List NVDCWE-798
9.8CRITICAL
NVD MITRE
EPSS Score
0.6%
Top 55.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-798

Affected Products

decolua
commercialaka 9router
9routerEmbedded
Networking Infrastructure / router-switch

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Credential Access
Initial Access
View detailed technique mapping

References

https://github.com/decolua/9router/security/advisories/GHSA-jphh-m39h-6gwx
github.com
https://github.com/decolua/9router/commit/fe3ce25ae3cda48c0702c2d452e17f6ec214009d
github.com
https://github.com/decolua/9router/releases/tag/v0.4.44
github.com

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