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CVE-2026-56677

9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint

Published: Aug 17, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-306
8.6HIGH
NVD MITRE
EPSS Score
0.3%
Top 81.2%
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. In 0.5.4 and earlier, the POST /api/auth/oidc/test endpoint in src/app/api/auth/oidc/test/route.js passes the user-controlled issuerUrl parameter to fetchOidcDiscovery() in src/lib/auth/oidc.js without restricting private or loopback destinations, allowing unauthenticated attackers when dashboard login is disabled to scan internal services and reflect OIDC discovery fields including token_endpoint and jwks_uri.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-306CWE-918

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

3 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://github.com/decolua/9router/security/advisories/GHSA-8g4w-4ffg-8vgx
github.com

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