CVE-2026-53667

MEDIUM

React Router RSCErrorHandler - Cross-Site Scripting

Title source: manual
STIX 2.1

Description

React Router is a router for React. In versions 7.11.0 through 7.17.0, the RSCErrorHandler is missing protocol validation, allowing for redirects from untrusted sources. This issue is a follow up to CVE-2026-53667, and only affects consuming applications if they are using the unstable RSC APIs. This issue has been fixed in version 7.18.0.

References (5)

Core 5

Scores

CVSS v3 6.9
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
remix-run/react-router >= 7.11.0, < 7.18.0
Published Jul 27, 2026
Tracked Since Jul 28, 2026