Bug 2507833 (CVE-2026-55685) - CVE-2026-55685 react-router: @remix-run/server-runtime: React Router: Denial of Service via unauthenticated manifest endpoint requests
Summary: CVE-2026-55685 react-router: @remix-run/server-runtime: React Router: Denial ...
Keywords:
Status: NEW
Alias: CVE-2026-55685
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2508068
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-27 22:01 UTC by OSIDB Bzimport
Modified: 2026-07-28 15:58 UTC (History)
151 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-27 22:01:24 UTC 
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 not impact React Router applications using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>). This issue has been fixed in version 7.18.0.
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