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CVE-2026-53669— React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)

Quick assessment

Affected
remix-run react-router
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

remix-run react-router是remix-run的路由管理库。 remix-run react-router 6.0.0版本至7.17.0版本存在输入验证错误漏洞，该漏洞源于在<Link>和useNavigate中使用反斜杠，容易受到开放重定向攻击。

CVSS 5.1 · Medium EPSS 0.32% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
remix-run react-router >= 6.0.0, < 7.18.0 affected
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I. Basic Information for CVE-2026-53669

Vulnerability Information
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Vulnerability Title
React Router: Open redirect via backslash in <Link> and useNavigate (CVE-2025-68470 bypass)
Source: CVE Program / CVE List V5
Vulnerability Description
React Router is a router for React. Versions 6.0.0 through 7.17.0 are vulnerable to Open Redirtect through use of backslashes in <Link> and useNavigate. This issue is a follow up to CVE-2025-68470 and has been fixed in version 7.18.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
remix-run react-router 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
remix-run react-router是remix-run的路由管理库。 remix-run react-router 6.0.0版本至7.17.0版本存在输入验证错误漏洞，该漏洞源于在<Link>和useNavigate中使用反斜杠，容易受到开放重定向攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
remix-run react-router >= 6.0.0, < 7.18.0 -

II. Public POCs for CVE-2026-53669

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III. Intelligence Information for CVE-2026-53669

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Patches & Fixes for CVE-2026-53669 (1)

Vendor Advisories for CVE-2026-53669 (1)

Vendor Pages for CVE-2026-53669 (1)

Same Patch Batch · remix-run · 2026-07-27 · 5 CVEs total

CVE-2026-55685 8.7 HIGH React Router: Unauthenticated Denial of Service via Inefficient Route Matching
CVE-2026-53667 6.9 MEDIUM React Router: Cross-site Scripting is Possible due to Missing RSCErrorHandler Protocol Val
CVE-2026-53668 6.9 MEDIUM React Router: Open redirect can lead to XSS
CVE-2026-53666 6.1 MEDIUM React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR

IV. Related Vulnerabilities

Same product: react-router
Same vendor: remix-run
Same weakness: CWE-601

V. Comments for CVE-2026-53669

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