CVE-2026-55501

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-55501
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55501.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-55501
Aliases
Published
2026-07-10T15:23:53.709Z
Modified
2026-07-15T01:48:59.339397432Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
9router: Login brute-force protection bypass via spoofed X-Forwarded-For header
Details

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.

Database specific 
{
    "cwe_ids": [
        "CWE-307"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55501.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/decolua/9router

Affected ranges

Type
GIT
Repo
https://github.com/decolua/9router
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7648c3412b403a29f04967c4b4e9725e228791d4
Fixed
515e2cc4300ace55650ae366414cd51ef3d675df
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.4.80"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.2.21
v0.2.27
v0.2.31
v0.2.36
v0.2.43
v0.2.52
v0.2.56
v0.2.67
v0.2.70
v0.2.71
v0.2.79
v0.2.89
v0.3.17
v0.3.34
v0.3.42
v0.3.47
v0.3.75
v0.3.83
v0.3.86
v0.3.87
v0.3.89
v0.3.90
v0.3.91
v0.3.97
v0.3.98
v0.4.1
v0.4.10
v0.4.11
v0.4.12
v0.4.13
v0.4.14
v0.4.16
v0.4.18
v0.4.19
v0.4.2
v0.4.20
v0.4.25
v0.4.27
v0.4.28
v0.4.29
v0.4.3
v0.4.30
v0.4.31
v0.4.33
v0.4.36
v0.4.37
v0.4.38
v0.4.39
v0.4.4
v0.4.41
v0.4.44
v0.4.46
v0.4.49
v0.4.50
v0.4.52
v0.4.55
v0.4.58
v0.4.59
v0.4.6
v0.4.62
v0.4.63
v0.4.66
v0.4.71
v0.4.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55501.json"