CVE-2026-43617: samba rsync

csirt@kutim:~/threat-intel/cve/CVE-2026-43617

CVSS 4.8 · Medium EPSS 0,32%

Kerentanan Authentication Bypass by Alternate Name pada samba rsync. Skor CVSS 3.1 4.8 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

Rsync version 3.4.2 and prior contain an authorization bypass vulnerability in the rsync daemon's hostname-based access control list enforcement when configured with chroot. Attackers can bypass hostname-based deny rules by controlling the PTR record for their source IP address, allowing connections from hostnames that administrators intended to deny when reverse DNS resolution fails and defaults to UNKNOWN.

Rincian

Terbit di NVD: 20 Mei 2026
Terakhir diubah: 24 Juli 2026
Status NVD: Analyzed
CVSS 3.1: 4.8 (Medium), sumber vulncheck.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-289: Authentication Bypass by Alternate Name
EPSS (30 hari): 0,32% peluang dieksploitasi; lebih tinggi dari 22,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
samba	rsync	Semua versi hingga 3.4.2

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/RsyncProject/rsync/security/advisories/GHSA-rjfm-3w2m-jf4f advisory vendor
https://www.vulncheck.com/advisories/rsync-authorization-bypass-via-hostname-resolution advisory pihak ketiga
https://github.com/RsyncProject/rsync/releases/tag/v3.4.3 release notes

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.