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CVE-2026-55501

9router: Login brute-force protection bypass via spoofed X-Forwarded-For header

Published: Jul 10, 2026Updated: Jul 10, 2026 Sources: CVE List NVDCWE-307
7.3HIGH
NVD MITRE
EPSS Score
0.5%
Top 59.5%
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. Prior to 0.4.80, the dashboard login rate limiter in src/lib/auth/loginLimiter.js derives the client identity from the attacker-controlled X-Forwarded-For HTTP header, and src/app/api/auth/login/route.js uses that spoofable value for checkLock and recordFail. A remote attacker can rotate the X-Forwarded-For value on each login attempt to receive a fresh rate-limit bucket, bypass the 5-attempt threshold and progressive lockout durations, and perform unlimited brute-force attempts against the dashboard password. This issue is fixed in version 0.4.80.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA: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:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-307

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

1 technique
Credential Access
View detailed technique mapping

References

https://github.com/decolua/9router/security/advisories/GHSA-7cfm-pqrj-xgq7
github.com
https://github.com/decolua/9router/commit/7648c3412b403a29f04967c4b4e9725e228791d4
github.com
https://github.com/decolua/9router/releases/tag/v0.4.80
github.com

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