CVE-2023-27491: envoyproxy envoy

csirt@kutim:~/threat-intel/cve/CVE-2023-27491

CVSS 9.1 · Critical EPSS 0,87%

Kerentanan Improper Input Validation pada envoyproxy envoy. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

Envoy is an open source edge and service proxy designed for cloud-native applications. Compliant HTTP/1 service should reject malformed request lines. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, There is a possibility that non compliant HTTP/1 service may allow malformed requests, potentially leading to a bypass of security policies. This issue is fixed in versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9.

Rincian

Terbit di NVD: 4 April 2023
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
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-20: Improper Input Validation
CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
EPSS (30 hari): 0,87% peluang dieksploitasi; lebih tinggi dari 57,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
envoyproxy	envoy	Semua versi sebelum 1.22.9
envoyproxy	envoy	Versi 1.23.0 hingga sebelum 1.23.6
envoyproxy	envoy	Versi 1.24.0 hingga sebelum 1.24.4
envoyproxy	envoy	Versi 1.25.0 hingga sebelum 1.25.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/envoyproxy/envoy/security/advisories/GHSA-5jmv-cw9p-f9rp exploit · advisory vendor
https://datatracker.ietf.org/doc/html/rfc9113#section-8.3 not applicable
https://datatracker.ietf.org/doc/html/rfc9114#section-4.3.1 not applicable
https://www.rfc-editor.org/rfc/rfc9110#section-5.6.2 not applicable

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.