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 attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.3.75 is sufficient to resolve this issue. It is suggested to upgrade the affected component.
EPSS: 0.003 (23.8th 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
- cna@vuldb.com (vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (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.