XSS Vulnerability in React Router and @remix-run/react Products from Remix-run
CVE-2025-59057

7.6HIGH

Key Information:

Vendor

Remix-run

Status
React-router
Vendor
CVE Published:
10 January 2026

What is CVE-2025-59057?

A Cross-Site Scripting (XSS) vulnerability was identified in the meta() and APIs of the React Router and @remix-run/react frameworks. This flaw, affecting specific versions, can allow attackers to execute arbitrary JavaScript during Server-Side Rendering (SSR) if untrusted content is processed for generating script:ld+json tags. Applications utilizing Declarative Mode or Data Mode are not impacted. The issue has been resolved in the latest versions, providing essential updates for developers to enhance security and maintain user safety.

Affected Version(s)

react-router @remix-run/react >= 1.15.0, < 2.17.1 < @remix-run/react 1.15.0, 2.17.1

react-router react-router >= 7.0.0, < 7.9.0 < react-router 7.0.0, 7.9.0

References

https://github.com/remix-run/react-router/security/adviso...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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