CVE-2025-64763: envoyproxy envoy

csirt@kutim:~/threat-intel/cve/CVE-2025-64763

CVSS 5.3 · Medium EPSS 0,30%

Kerentanan Protection Mechanism Failure pada envoyproxy envoy. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, when Envoy is configured in TCP proxy mode to handle CONNECT requests, it accepts client data before issuing a 2xx response and forwards that data to the upstream TCP connection. If a forwarding proxy upstream from Envoy then responds with a non-2xx status, this can cause a de-synchronized CONNECT tunnel state. By default Envoy continues to allow early CONNECT data to avoid disrupting existing deployments. The envoy.reloadable_features.reject_early_connect_data runtime flag can be set to reject CONNECT requests that send data before a 2xx response when intermediaries upstream from Envoy may reject establishment of a CONNECT tunnel.

Rincian

Terbit di NVD: 3 Desember 2025
Terakhir diubah: 17 Juni 2026
Status NVD: Analyzed
CVSS 3.1: 5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-693: Protection Mechanism Failure
EPSS (30 hari): 0,30% peluang dieksploitasi; lebih tinggi dari 21,1% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
envoyproxy	envoy	Semua versi sebelum 1.33.13
envoyproxy	envoy	Versi 1.34.0 hingga sebelum 1.34.11
envoyproxy	envoy	Versi 1.35.0 hingga sebelum 1.35.7
envoyproxy	envoy	Versi 1.36.0 hingga sebelum 1.36.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/envoyproxy/envoy/security/advisories/GHSA-rj35-4m94-77jh patch · advisory vendor

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.