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CVE-2025-31137

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CVE-2025-31137

Published: Apr 1, 2025

Modified: Apr 2, 2025

PUBLISHED

CVSS v3.0

7.5

HIGH

Description

React Router is a multi-strategy router for React bridging the gap from React 18 to React 19. There is a vulnerability in Remix/React Router that affects all Remix 2 and React Router 7 consumers using the Express adapter. Basically, this vulnerability allows anyone to spoof the URL used in an incoming Request by putting a URL pathname in the port section of a URL that is part of a Host or X-Forwarded-Host header sent to a Remix/React Router request handler. This issue has been patched and released in Remix 2.16.3 and React Router 7.4.1.

VendorProductVersions

remix-run

react-router

affected
>= 7.0.0, < 7.4.1
affected
>= 2.11.1, < 2.16.3

Weaknesses (CWE)

CWE-444

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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