CVE-2026-53785
HighCVSS 7.1Summary
rsync before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to write files outside the intended destination directory tree by crafting relative paths with symlink components in --relative mode. The make_path() function follows symlinks pointing outside the destination tree while creating intermediate directories without verifying that created paths remain within the destination boundary, enabling arbitrary file writes on the receiver's filesystem.
Risk Assessment
The risk includes the possibility of writing files to arbitrary locations on the receiver's system, which could lead to integrity compromise or privilege escalation.
Recommendation
It is recommended to upgrade rsync to version 3.5.0 or later and avoid using --relative mode with untrusted senders.
Original NVD description (English source)
rsync before 3.5.0 contains a path traversal vulnerability that allows a malicious sender to write files outside the intended destination directory tree by crafting relative paths with symlink components in --relative mode. The make_path() function follows symlinks pointing outside the destination tree while creating intermediate directories without verifying that created paths remain within the destination boundary, enabling arbitrary file writes on the receiver's filesystem.