CVE-2026-43619

Katalog CVE

CVSS 6.3 · Medium EPSS 0,13%

Kerentanan Improper Link Resolution Before File Access ('Link Following') pada samba rsync. Skor CVSS 3.1 6.3 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

Rsync version 3.4.2 and prior contain symlink race condition vulnerabilities in path-based system calls including chmod, lchown, utimes, rename, unlink, mkdir, symlink, mknod, link, rmdir, and lstat that allow local attackers to redirect operations to files outside the exported rsync module. Attackers with local filesystem access can exploit the timing window between path resolution and syscall execution by swapping symlinks to apply sender-supplied permissions, ownership, timestamps, or filenames to arbitrary files outside the intended module boundary on rsync daemons configured with 'use chroot = no'.

Rincian

Terbit di NVD

20 Mei 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

6.3 (Medium), sumber vulncheck.com
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 2,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/RsyncProject/rsync/security/advisories/GHSA-4h9m-w5ff-j735 advisory vendor
• https://www.vulncheck.com/advisories/rsync-symlink-race-condition-via-path-based-syscalls advisory pihak ketiga
• https://github.com/RsyncProject/rsync/releases/tag/v3.4.3 release notes