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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-55685 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 8.7 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180 GitHub, Inc.
https://github.com/remix-run/react-router/commit/09e6020d1950e54f361f7ad00938ecd4dde60929 GitHub, Inc.
https://github.com/remix-run/react-router/pull/15186 GitHub, Inc.
https://github.com/remix-run/react-router/releases/tag/[email protected] GitHub, Inc.
https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78 GitHub, Inc.
https://github.com/remix-run/react-router/security/advisories/GHSA-chx6-hx7r-mcp5 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption GitHub, Inc.  
CWE-407 Inefficient Algorithmic Complexity GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-55685
NVD Published Date:
07/27/2026
NVD Last Modified:
07/27/2026
Source:
GitHub, Inc.