CVE-2025-12642

Katalog CVE

CVSS 9.1 · Critical EPSS 0,37%

Kerentanan Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') pada lighttpd. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

lighttpd1.4.80 incorrectly merged trailer fields into headers after http request parsing. This behavior can be exploited to conduct HTTP Header Smuggling attacks. Successful exploitation may allow an attacker to: * Bypass access control rules * Inject unsafe input into backend logic that trusts request headers * Execute HTTP Request Smuggling attacks under some conditions This issue affects lighttpd1.4.80

Rincian

Terbit di NVD

3 November 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 28,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/lighttpd/lighttpd1.4/commit/35cb89c103877de62d6b63d0804255475d77e5e1 patch