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CVE-2026-53667

React Router: Cross-site Scripting is Possible due to Missing RSCErrorHandler Protocol Validation (Incomplete fix for CVE-2026-53667) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
remix-run / react-routeraffected >= 7.11.0, < 7.18.0

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.