Open Redirect Vulnerability in React Router Affecting Versions 6.0.0 to 7.17.0
CVE-2026-53669

5.1MEDIUM

Key Information:

Vendor

Remix-run

Status
React-router
Vendor
CVE Published:
27 July 2026

What is CVE-2026-53669?

The React Router library, used for managing routing in React applications, is affected by an Open Redirect vulnerability that arises from improper handling of backslashes in the component and useNavigate function. Versions from 6.0.0 to 7.17.0 are vulnerable. This issue serves as a follow-up to a previous vulnerability identified in CVE-2025-68470. The vulnerability has been addressed in version 7.18.0, which users are encouraged to update to in order to safeguard their applications.

Affected Version(s)

react-router >= 6.0.0, < 7.18.0

References

https://github.com/remix-run/react-router/security/adviso...
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https://github.com/remix-run/react-router/pull/15176
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https://github.com/remix-run/react-router/blob/main/CHANG...
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CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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