CVE-2025-55152

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

Published Aug 9, 2025 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-24026 Oak Server has ReDoS in x-forwarded-proto and x-forwarded-for headers
Github GHSA Github GHSA GHSA-r3v7-pc4g-7xp9 Oak Server has ReDoS in x-forwarded-proto and x-forwarded-for headers
History
Type Values Removed Values Added
First Time appeared Oakserver
Oakserver oak
Vendors & Products Oakserver
Oakserver oak
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title oak: ReDoS in x-forwarded-proto and x-forwarded-for headers
Weaknesses CWE-1333
CWE-400
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 11, 2025, 1:33 PM
Reserved
Aug 7, 2025, 6:27 PM
Status
Deferred
Published
Aug 9, 2025, 2:15 AM
Modified
Jun 17, 2026, 9:41 AM