CVE-2026-55501 | 9Router is an AI router & token saver. Prior to 0.4.80, the … | CVSS 7.3 HIGH

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.

Metadata

CVE ID: CVE-2026-55501
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-16 22:28 UTC
Published: 2026-07-10 15:23 UTC
Last updated: 2026-07-10 16:45 UTC
Primary CWE: CWE-307
CWE-307: Improper Restriction of Excessive Authentication At…
Vendor / Product: decolua / 9router
Sources: cve.org · NVD

Severity & Metrics

7.3 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
decolua	9router	—	< 0.4.80

Weakness (CWE)

CWE	Source	Description
CWE-307	cna	CWE-307: Improper Restriction of Excessive Authentication Attempts

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.3	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References (3)

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