CVE-2026-53784: Samba Rsync

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

rsync before 3.5.0 contains a path traversal vulnerability that allows remote clients to access files outside the intended module root when use chroot is disabled and the module root path or a component of it is a symlink. The daemon calls chdir() to the module root at session initialization without resolving symlinks via realpath() or equivalent, causing subsequent relative-path operations to reference files relative to the symlink target rather than the intended module root, enabling unauthorized file access.

Affected products

• Samba Rsync: before 3.5.0 (fixed in 3.5.0)

Published 2026-08-13. Last modified 2026-08-31.