CVE-2025-59057

HIGH 7.6

React Router has XSS Vulnerability

CVSS Score

7.6

EPSS Score

0.0%

EPSS Percentile

0th

React Router is a router for React. In @remix-run/react versions 1.15.0 through 2.17.0. and react-router versions 7.0.0 through 7.8.2, a XSS vulnerability exists in in React Router's meta()/<Meta> APIs in Framework Mode when generating script:ld+json tags which could allow arbitrary JavaScript execution during SSR if untrusted content is used to generate the tag. There is no impact if the application is being used in Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>). This issue has been patched in @remix-run/react version 2.17.1 and react-router version 7.9.0.

CWE	CWE-79
Vendor	remix-run
Product	react-router
Published	Jan 10, 2026
Last Updated	Jun 30, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

remix-run / react-router

@remix-run/react >= 1.15.0, < 2.17.1 react-router >= 7.0.0, < 7.9.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/remix-run/react-router/security/advisories/GHSA-3cgp-3xvw-98x8 access.redhat.com: https://access.redhat.com/security/cve/CVE-2025-59057 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2428426 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-59057.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3958 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3960 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3782 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:19712