CVE-2026-33245
React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets
CVSS Score
8.0
EPSS Score
0.0%
EPSS Percentile
10th
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.
| CWE | CWE-79 |
| Vendor | remix-run |
| Product | react-router |
| Published | Jun 2, 2026 |
| Last Updated | Jun 3, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
remix-run / react-router
>= 7.7.0, < 7.13.2