Auth bypass in Decolua 9router
CVE-2026-5842
A security vulnerability has been detected in decolua 9router up to 0.3.47. The impacted element is an unknown function of the file /api of the component Administrative API Endpoint. The manipulation leads to authorization bypass. The atta…
EPSS: 0.001 (19.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Decolua 9router — versions 0.3.0, 0.3.1, 0.3.2
Weakness classification (CWE)
References
- VDB-356298 | decolua 9router Administrative API Endpoint api authorization (vdb-entry)
- VDB-356298 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #790003 | 9Router Router 0.3.47-0.3.32 Authorization Bypass (third-party-advisory)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (exploit)
- cna@vuldb.com (patch)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-5842?
- CVE-2026-5842 is a high-severity vulnerability in Decolua 9router, classified under Improper Authorization. CVSS score: 7.3/10. Published 2026-04-09.
- How severe is CVE-2026-5842?
- High severity. CVSS v3 base score is 7.3 out of 10.