CVE-2025-43859

Katalog CVE

CVSS 9.1 · Critical EPSS 0,58%

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

Deskripsi (NVD)

h11 is a Python implementation of HTTP/1.1. Prior to version 0.16.0, a leniency in h11's parsing of line terminators in chunked-coding message bodies can lead to request smuggling vulnerabilities under certain conditions. This issue has been patched in version 0.16.0. Since exploitation requires the combination of buggy h11 with a buggy (reverse) proxy, fixing either component is sufficient to mitigate this issue.

Rincian

Terbit di NVD

24 April 2025

Terakhir diubah

17 Juni 2026

Status NVD

Deferred

CVSS 3.1

9.1 (Critical), sumber github.com
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)

0,58% peluang dieksploitasi; lebih tinggi dari 46,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/python-hyper/h11/commit/114803a29ce50116dc47951c690ad4892b1a36ed
• https://github.com/python-hyper/h11/security/advisories/GHSA-vqfr-h8mv-ghfj