Path traversal in rclone - #VU140646
Published: August 1, 2026
Vulnerability identifier: #VU140646
CSH Severity: Medium
CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to create or overwrite files outside the configured destination directory.
The vulnerability exists due to path traversal in backend/local.localPath when processing attacker-controlled object names during copy, sync, or move operations to a local destination. A remote attacker can create a specially crafted object name in a remote source to create or overwrite files outside the configured destination directory.
User interaction is required, and exploitation requires a non-default local encoding that preserves filesystem path syntax.
Affected software
rclone
Remediation
Install security update from vendor's website.
rclone - update to 1.75.0