CVE-2026-26962

Katalog CVE

CVSS 6.5 · Medium EPSS 0,25%

Kerentanan Improper Neutralization of CRLF Sequences ('CRLF Injection') pada rack. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Rack is a modular Ruby web server interface. From version 3.2.0 to before version 3.2.6, Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as filename or name instead of removing the folded line break during unfolding. As a result, applications that later reuse those parsed values in HTTP response headers may be vulnerable to downstream header injection or response splitting. This issue has been patched in version 3.2.6.

Rincian

Terbit di NVD

2 April 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 14,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/rack/rack/security/advisories/GHSA-rx22-g9mx-qrhv mitigasi · advisory vendor