CVE-2026-53666: react-router from 6.4.0 (inclusive), before 7.18.0 (exclusive), >= 6.4.0, < 7.18.0

CVE-2026-53666. CVSS 3.1 base score 6.1 (MEDIUM, Vendor/CNA). EPSS 0.0042 (percentile 0.35281), scored 22-Oct-2026.

Affected technology

react-router · from 6.4.0 (inclusive), before 7.18.0 (exclusive)
shopify

react-router · >= 6.4.0, < 7.18.0
remix-run

Component: Not specified by the source

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

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 6.1/10) rates confidentiality and integrity impact as low; availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 24-Oct-2026 15:08 UTC

CWE: CWE-470
CCR priority: 24.5 /100 (P4)
CVSS 3.1: 6.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N · Vendor/CNA
EPSS: 0.0042 · percentile 0.3533 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-53666.html