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npm/@remix-run/express CVE-2025-31137: high 7.5, EPSS 1.19%

Remix and React Router allow URL manipulation via Host / X-Forwarded-Host headers

Action: Upgrade @remix-run/express to 2.16.3 or later.

npm i @remix-run/express@2.16.3

Affected

introducedfixedlast affected
2.11.12.16.3-

Fixed versions

2.16.3

Sources

CVE-2025-31137 · published · modified · JSON