CVE-2026-18446

Katalog CVE

CVSS 7.5 · High EPSS 0,22%

Kerentanan Interpretation Conflict pada openjsf fast-uri. Skor CVSS 3.1 7.5 (High) menurut CNA.

Deskripsi (NVD)

fast-uri before 4.1.2, 3.1.5, and 2.4.4 requires a literal double forward slash to recognize a URI authority, so a reference that uses a backslash based introducer in place of it (backslash backslash, forward slash backslash, or backslash forward slash) is parsed with no authority and folds into the path. Node's native WHATWG URL parser instead treats a backslash as interchangeable with a forward slash for special schemes, so the two parsers extract different hosts from the same input. Applications that use fast-uri to enforce host based policy such as allowlists, SSRF filtering, or redirect validation before passing the same URL into Node's URL or fetch consumers can be steered to an unintended host. Upgrade to fast-uri 4.1.2, 3.1.5, or 2.4.4.

Rincian

Terbit di NVD

31 Juli 2026

Terakhir diubah

2 September 2026

Status NVD

Analyzed

CVSS 3.1

7.5 (High), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-436: Interpretation Conflict

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 11,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cna.openjsf.org/security-advisories.html advisory vendor
• https://github.com/fastify/fast-uri/security/advisories/GHSA-7p8r-x3mc-p8w7 advisory vendor