CVE-2026-55685
CVE-2026-55685
8.7
HighPublished:
Last updated:
Source:security-advisories@github.com
Analyzed
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- None
- User Interaction
- None
- Confidentiality (Vulnerable)
- None
- Integrity (Vulnerable)
- None
- Availability (Vulnerable)
- High
- Confidentiality (Subsequent)
- None
- Integrity (Subsequent)
- None
- Availability (Subsequent)
- None
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.
References
security-advisories@github.com
https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180security-advisories@github.com
https://github.com/remix-run/react-router/commit/09e6020d1950e54f361f7ad00938ecd4dde60929security-advisories@github.com
https://github.com/remix-run/react-router/pull/15186security-advisories@github.com
https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0security-advisories@github.com
https://github.com/remix-run/react-router/security/advisories/GHSA-8x6r-g9mw-2r78security-advisories@github.com
https://github.com/remix-run/react-router/security/advisories/GHSA-chx6-hx7r-mcp5