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Medium · 5.3 CVE-2025-55152 EUVD-2025-24026GHSA-r3v7-pc4g-7xp9

oak: ReDoS in x-forwarded-proto and x-forwarded-for headers

Published Aug 9, 2025 · Updated Aug 11, 2025 · Assigned by GitHub_M

Description

oak is a middleware framework for Deno's native HTTP server, Deno Deploy, Node.js 16.5 and later, Cloudflare Workers and Bun. In versions 17.1.5 and below, it's possible to significantly slow down an oak server with specially crafted values of the x-forwarded-proto or x-forwarded-for headers.

Affected products

VendorProductAffectedFixed
oakserver oak < 17.1.6 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @oakserver/oak <= 14.1.0 — GHSA-r3v7-pc4g-7xp9

References