CVE-2026-47075

Katalog CVE

CVSS 7.5 · High EPSS 0,42%

Kerentanan Improper Neutralization of CRLF Sequences ('CRLF Injection') pada benoitc hackney. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Improper Neutralization of CRLF Sequences vulnerability in benoitc hackney allows HTTP Request Splitting. hackney does not percent-encode carriage return (\r) or line feed (\n) characters in the URL query component before constructing the HTTP/1.1 request target. Characters outside the grammar defined in RFC 3986 Section 3.4 must be percent-encoded, but hackney_url:make_url/3 passes the query binary directly without validation or escaping. An attacker who can control all or part of a URL passed to hackney can inject raw CRLF sequences into the query string, which are then sent as HTTP line breaks in the request target. This enables injection of arbitrary HTTP headers or splitting of the HTTP request. This issue affects hackney: from 0.13.1 before 4.0.1.

Rincian

Terbit di NVD

25 Mei 2026

Terakhir diubah

24 Juli 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
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-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

EPSS (30 hari)

0,42% peluang dieksploitasi; lebih tinggi dari 34,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/benoitc/hackney/security/advisories/GHSA-j9wq-vxxc-94wf exploit · patch · advisory vendor
• https://cna.erlef.org/cves/CVE-2026-47075.html patch · advisory pihak ketiga
• https://github.com/benoitc/hackney/commit/ca73dd0aba0ed557449c18288bf07241671a43c9 patch
• https://osv.dev/vulnerability/EEF-CVE-2026-47075 patch · advisory pihak ketiga