CVE-2026-71313
Received Received - Intake

Path Traversal in Rclone Local Backend

Vulnerability report for CVE-2026-71313, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: GitHub, Inc.

Description

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From v1.51.0 until v1.75.0, the local backend in backend/local/local.go relies on the configurable filename encoder to prevent remote filename data from becoming operating-system path syntax, so a local destination using Slash, None, Raw, or on Windows an encoding that preserves backslash can decode a standard-encoded fullwidth dot-dot component or native backslash form into an actual parent-directory component before filepath.Join resolves it outside the configured local root, allowing an attacker-controlled source object to create or overwrite files outside the selected destination directory as the rclone process. This issue is fixed in v1.75.0.

CVSS Scores

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-06
AI Q&A
2026-08-06
EPSS Evaluated
N/A
NVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
-rclone rclone to 1.75.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

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Executive Summary

This vulnerability affects rclone versions 1.51.0 to 1.75.0. It involves the local backend incorrectly handling filename encoding, allowing attackers to create or overwrite files outside the intended destination directory by manipulating path components.

Detection Guidance

Check the version of rclone installed on your system. If it is between v1.51.0 and v1.75.0, the system is vulnerable. Run 'rclone version' to verify the installed version.

Impact Analysis

An attacker could exploit this to write files to unintended locations on your system, potentially overwriting critical files or placing malicious content where it shouldn't be, depending on how you use rclone.

Compliance Impact

This vulnerability could lead to unauthorized file creation or overwriting outside the intended directory, potentially exposing sensitive data stored in cloud storage. This may violate compliance requirements under GDPR (data protection) or HIPAA (health information privacy) by allowing unauthorized access or modification of protected data.

Mitigation Strategies

Upgrade rclone to version v1.75.0 or later immediately. This version includes the fix for the vulnerability. Use your package manager or download the latest version from the official rclone website.

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