{"cve":"CVE-2025-55152","nvd":{"published":"2025-08-09T02:15:38.033","modified":"2026-06-17T09:41:21.850","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-400","CWE-1333"],"references":["https://github.com/oakserver/oak/commit/b60e60330ef227707c4dc13ef0ea36192d894f44","https://github.com/oakserver/oak/security/advisories/GHSA-r3v7-pc4g-7xp9"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:06:45.861874017+00:00"},"epss":{"cve":"CVE-2025-55152","score":0.00411,"percentile":0.35411,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-r3v7-pc4g-7xp9","url":"https://osv.dev/vulnerability/GHSA-r3v7-pc4g-7xp9","summary":"Oak Server has ReDoS in x-forwarded-proto and x-forwarded-for headers","modified":"2025-08-12T00:15:00Z","packages":[{"ecosystem":"npm","name":"@oakserver/oak","purl":"pkg:npm/%40oakserver/oak","ranges":["<=14.1.0"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}