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.
Product
redhat/react-router vulnerabilities
12 published CVES affecting redhat/react-router, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
- Total
- 12
- Critical
- 0
- High
- 4
- Medium
- 7
- Low
- 1
- Unscored
- 0
- CISA KEV
- 0
Latest redhat/react-router CVEs
Newest publication first
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MediumCVSS 5.1 EPSS 0.32%
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CVE-2026-55685 React Router: Unauthenticated Denial of Service via Inefficient Route Matching
PublishedHighCVSS 8.7 EPSS 0.71%React Router is a router for React. In versions 7.0.0 through 7.17.0, the manifest endpoint could be accessed via unauthenticated targeted requests that would put heavy load on the server and slow down response times. This issue is a follow up to CVE-2026-42342, and does not does...
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MediumCVSS 6.9 EPSS 0.34%
React Router is a router for React. In versions 6.30.2 through 6.30.4 and 7.9.6 through 7.12.0, applications that allow open redirects are vulnerable to XSS. An attacker could craft a malicious link that redirects users to an unexpected external site or that exploits an XSS vecto...
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MediumCVSS 6.1 EPSS 0.36%
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 uns...
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MediumCVSS 6.1 EPSS 0.42%
React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected construc...
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LowCVSS 3.1 EPSS 0.15%
React Router is a router for React. From 7.12.0 until 7.15.1, certain CSRF checks in React Router v7 Framework Mode were insufficient and run on POST requests, but were bypassed on PUT/PATCH/DELETE requests. This is a low severity vulnerability because modern browser protections...
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CVE-2026-42342 React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint
PublishedHighCVSS 7.5 EPSS 0.30%React Router is a router for React. In versions 7.0.0 through 7.14.x of react-router and versions 2.10.0 through 2.17.4 of @remix-run/server-runtime, certain crafted requests can consume disproportionate server resources via unbounded path expansion in the __manifest endpoint, re...
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HighCVSS 8.1 EPSS 0.42%
React Router is a router for React. In versions 7.0.0 through 7.14.1, when using Framework Mode, a combination of steps could potentially allow unauthorized remote code execution (RCE) through external requests. This attack requires the application code to have an existing protot...
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MediumCVSS 6.6 EPSS 0.22%
React Router is a router for React. In versions 7.0.0 through 7.14.0 and 6.7.0 through 6.30.3, certain URLs passed to the redirect function can trigger an open redirect to an external domain due to path values starting with // being reinterpreted as protocol-relative URLs. The le...
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CVE-2026-34077 React Router vulnerable to Denial of Service via reflected user input in single-fetch
PublishedHighCVSS 7.5 EPSS 0.29%React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sou...
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MediumCVSS 4.7 EPSS 0.19%
React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sou...
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MediumCVSS 5.4 EPSS 0.14%
React Router is a router for React. In versions 7.5.1 through 7.13.1, when using Framework Mode with pre-rendering enabled, improper neutralization of the HTTP Location header value can permit Cross-Site Scripting (XSS) in the statically generated HTML files if the redirect locat...
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.