CVE-2026-55641: 9router < 0.5.2

CVE-2026-55641. CVSS 3.1 base score 8.2 (HIGH, Vendor/CNA). EPSS 0.00323 (percentile 0.24101), scored 24-Oct-2026.

Affected technology

9router · < 0.5.2
decolua

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

A remote unauthenticated attacker can send Host: localhost and bypass API-key authentication. Vendor/CNA’s CVSS 3.1 assessment (base score 8.2/10) rates confidentiality impact as high; integrity impact as low; availability impact as none.

Published 25-Oct-2026 19:51 UTC

CWE: CWE-290, CWE-348, CWE-918, CWE-1327
CCR priority: 32.9 /100 (P4)
CVSS 3.1: 8.2 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N · Vendor/CNA
EPSS: 0.00323 · percentile 0.25035 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-55641.html