CVE-2026-33245
Published:June 02, 2026
Updated:June 05, 2026
React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.
Affected Packages
react-router (CDN_JS):
Affected version(s) >=7.7.0 <7.13.2Fix Suggestion:
Update to version 7.13.2https://github.com/remix-run/react-router.git (GITHUB):
Affected version(s) >=react-router@7.7.0 <react-router@7.13.2Fix Suggestion:
Update to version react-router@7.13.2react-router (NPM):
Affected version(s) >=7.7.0 <7.13.2Fix Suggestion:
Update to version 7.13.2react-router (NPM):
Affected version(s) >=7.7.0 <7.13.2Fix Suggestion:
Update to version 7.13.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
NONE
CVSS v3
Base Score:
8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.03