CVE-2021-21321

Katalog CVE

CVSS 10.0 · Critical EPSS 1,8%

Kerentanan Improper Input Validation pada fastify-reply-from project fastify-reply-from. Skor CVSS 3.1 10.0 (Critical) menurut NVD.

Deskripsi (NVD)

fastify-reply-from is an npm package which is a fastify plugin to forward the current http request to another server. In fastify-reply-from before version 4.0.2, by crafting a specific URL, it is possible to escape the prefix of the proxied backend service. If the base url of the proxied server is "/pub/", a user expect that accessing "/priv" on the target service would not be possible. In affected versions, it is possible. This is fixed in version 4.0.2.

Rincian

Terbit di NVD

2 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

10.0 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation

EPSS (30 hari)

1,8% peluang dieksploitasi; lebih tinggi dari 78,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/fastify/fastify-reply-from/commit/dea227dda606900cc01870d08541b4dcc69d3889 patch · advisory pihak ketiga
• https://github.com/fastify/fastify-reply-from/security/advisories/GHSA-qmw8-3v4g-gwj4 advisory pihak ketiga
• https://www.npmjs.com/package/fastify-reply-from product · advisory pihak ketiga