VULNERABILITY INTELLIGENCE
CVE-2026-55685
CVSS score7.5 HIGH
EPSS probability0.71%
CISA KEVNot currently listed
Published2026-07-27
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
Weakness classification
- security-advisories@github.com: CWE-400
Primary references
- security-advisories@github.com — Release Notes
- security-advisories@github.com — Patch
- security-advisories@github.com — Issue Tracking, Patch
- security-advisories@github.com — Release Notes
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Third Party Advisory