High 8.3Published Jul 10, 2026

CVE-2026-566759router: Reverse proxy locality collapse allows unauthenticated access to 9router /v1 APIs

Updated under an hour ago (Oct 28, 2026, 12:50 AM ET)

Does this affect you?

It affects decolua 9router. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for decolua 9router

Exploited in the last 30 days

9Router is an AI router & token saver. Prior to 0.5.2, 9router treats loopback requests as trusted and allows /v1/* access without an API key, so a same-host reverse proxy that forwards public traffic to the backend through 127.0.0.1 causes src/dashboardGuard.js to misclassify external requests as local. A remote unauthenticated attacker can access /v1 APIs such as /v1/models and may abuse configured upstream provider credentials through /v1 proxy endpoints depending on enabled providers. This issue is fixed in version 0.5.2.

CVSS: 8.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Weakness (CWE): CWE-287, CWE-290, CWE-306, CWE-441
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jul 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

decolua 9router decolua:9router (from the name)	before 0.5.2	CNA record

References

References

https://github.com/decolua/9router/security/advisories/GHSA-x5c9-v98j-722r	x-refsource-confirm
https://github.com/decolua/9router/commit/da667836cc7584bea0edd893de1d590c9ea279dc	x-refsource-misc
https://github.com/decolua/9router/releases/tag/v0.5.2	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.