npm package report

Is @remix-run/express safe?

1 known vulnerability, worst severity HIGH.

cvss
7.5

how bad it is if exploited, out of 10

epss
1.2%

chance of exploitation in the next 30 days

xyz score
4.0

CyberXYZ composite, out of 10

fig. 01 — GHSA-4q56-crqp-v477, the advisory selected below

// advisories

GHSA-4q56-crqp-v477

HIGHCVE-2025-31137

We received a report about 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.

Affected
>= 2.11.1, < 2.16.3
Fixed in
2.16.3
Weakness
CWE-444
Published
2025-04-01
Source
github

GHSANVDMITREreference

// dependencies

1 direct, 1 carrying known advisories, worst CRITICAL

Sign in for dependency paths and remediation

// ai model usage

Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

Checked 2026-09-22 at 02:42 UTC. The most recent advisory here was published 2025-04-01. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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Is @remix-run/express safe? npm package security report | CyberXYZ