CVE-2026-53663

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 CORS preflight,...

CVE-2026-53663

React Router (v7 Framework Mode) is affected in versions 7.12.0–7.15.0 where CSRF checks run on POST but not on PUT/PATCH/DELETE; this could enable cross-origin state changes. The issue is considered low severity due to browser protections (CORS preflight, SameSite cookies). It has been fixed in ...

EUVD-2026-38338

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 CORS preflight,...

CVE-2026-53663 React Router: `handleDocumentRequest` CSRF check covers `POST` only; PUT/PATCH/DELETE bypass

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 CORS preflight,...

Linux Distros Unpatched Vulnerability : CVE-2026-40181

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2026-33244

A flaw was found in react-router. When using Framework Mode with pre-rendering enabled, an attacker can exploit improper handling of the HTTP Location header value. This can lead to Cross-Site Scripting XSS, allowing malicious scripts to be injected into statically generated HTML files if the...

CVE-2026-40181

A flaw was found in React Router. This vulnerability allows a remote attacker to redirect users to an external, potentially malicious, website. This occurs when specially crafted URLs, containing paths starting with //, are passed to the redirect function, causing them to be misinterpreted as...

Cross-site Request Forgery (CSRF)

Overview Affected versions of this package are vulnerable to Cross-site Request Forgery CSRF due to insufficient CSRF checks for PUT, PATCH, and DELETE document requests. An attacker can cause unauthorized state changes by tricking a user into submitting crafted requests from another origin. Note...

React Router: Potential CSRF via PUT/PATCH/DELETE document requests

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 CORS preflight, SameSite cookies already block the cross-origin attack vectors...

GHSA-84G9-W2XQ-VCV6 React Router: Potential CSRF via PUT/PATCH/DELETE document requests

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 CORS preflight, SameSite cookies already block the cross-origin attack vectors...

NPM: React Router: Potential CSRF via PUT/PATCH/DELETE document requests

NPM: React Router: Potential CSRF via PUT/PATCH/DELETE document requests vulnerability discovered by ? in WordPress Npm react-router versions = 7.12.0, 7.15.1...

PT-2026-49578

Name of the Vulnerable Software and Affected Versions React Router version 7 Description Insufficient Cross-Site Request Forgery CSRF checks in Framework Mode allow bypasses when using 'PUT', 'PATCH', or 'DELETE' requests, as the checks were primarily applied to 'POST' requests. CSRF is a type of...

CVE-2026-34077

A flaw was found in React Router versions 7.7.0 through 7.13.1. When using the unstable React Server Components RSC APIs, insufficient sanitization of redirect targets allows client-side cross-site scripting if redirects originate from untrusted sources. An attacker could inject script that...

@accounter/client (>=0.0.3 <=0.0.11-alpha-20260404002702-9340365def1af08a5cdbbf734a87d1d4839bdaff), @asamanvay/auth-service (>=0.0.2 <=0.0.4) +151 more potentially affected by CVE-2026-34077 via react-router (>=7.0.0 <=7.14.0-pre.0)

react-router NPM version =7.0.0, =0.0.3, =0.0.2, =3.5.2, =1.1.0, =1.0.1-MON-198808-web-js-deps-batch-1.0, =0.0.1, =3.4.9, =0.1.9, =0.3.1, =7.13.1-depup.0, =7.13.2-depup.0 and more Source cves: CVE-2026-34077 Source advisory: OSV:GHSA-RXV8-25V2-QMQ8...

EUVD-2026-33994

React Router vulnerable to Denial of Service via reflected user input in single-fetch...

React Router vulnerable to Denial of Service via reflected user input in single-fetch

A DoS vulnerability exists in the React Router v7 Framework Mode, as well as Remix v2.9.0+ with Single Fetch enabled. In some scenarios the underlying serialization algorithm can become a bottleneck when encoding specific types of data into server responses. Please upgrade to React Router v7.14.0...

GHSA-RXV8-25V2-QMQ8 React Router vulnerable to Denial of Service via reflected user input in single-fetch

A DoS vulnerability exists in the React Router v7 Framework Mode, as well as Remix v2.9.0+ with Single Fetch enabled. In some scenarios the underlying serialization algorithm can become a bottleneck when encoding specific types of data into server responses. Please upgrade to React Router v7.14.0...

SUSE CVE-2026-33245

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 sources. This does not...

SUSE CVE-2026-34077

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 sources. This does not...

SUSE CVE-2026-40181

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 level of impact...