CVE-2026-112712: @fastify/middie 9.0.0 to before 9.3.6

CVE-2026-112712. CVSS 3.1 base score 9.1 (CRITICAL, Source advisory).

Affected technology

@fastify/middie · 9.0.0 to before 9.3.6
@fastify/middie

Component: Not specified by the source
Function: joined

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Source advisory’s CVSS 3.1 assessment (base score 9.1/10) rates confidentiality and integrity impact as high; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 20-Oct-2026 21:22 UTC

CWE: CWE-436
CCR priority: 36.4 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · Source advisory
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-20 21:22:07.084487+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-112712.html