CVE-2021-39156: istio — Katalog CVE

csirt@kutim:~/threat-intel/cve/CVE-2021-39156

CVSS 7.5 · High EPSS 1,2%

Kerentanan Incorrect Authorization pada istio. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio 1.11.0, 1.10.3 and below, and 1.9.7 and below contain a remotely exploitable vulnerability where an HTTP request with `#fragment` in the path may bypass Istio’s URI path based authorization policies. Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize the path.

Rincian

Terbit di NVD: 24 Agustus 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-863: Incorrect Authorization
CWE-706: Use of Incorrectly-Resolved Name or Reference
EPSS (30 hari): 1,2% peluang dieksploitasi; lebih tinggi dari 66,7% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
istio	istio	Semua versi sebelum 1.9.8
istio	istio	Versi 1.10.0 hingga sebelum 1.10.3
istio	istio	Versi 1.11.0 hingga sebelum 1.11.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://istio.io/latest/news/security/istio-security-2021-008 advisory vendor
https://github.com/istio/istio/security/advisories/GHSA-hqxw-mm44-gc4r advisory pihak ketiga

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.