Directory Traversal Vulnerability in Rclone Command-Line Program
CVE-2026-88046

5.3MEDIUM

Key Information:

Vendor

Rclone

Status
Rclone
Vendor
CVE Published:
10 September 2026

What is CVE-2026-88046?

A vulnerability in Rclone allows an attacker to exploit parent-directory segments in source Object.Remote() values. This could enable unauthorized access to files and directories across specified cloud storage services, potentially allowing sensitive data to escape the defined root directory and reach other accessible storage areas or paths. The issue impacts multiple storage backends, including b2, swift, and smb, among others. The vulnerability has been resolved in Rclone version 1.75.1, which implements checks to reject these segments before they are processed.

Affected Version(s)

rclone < 1.75.1

References

https://github.com/rclone/rclone/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/rclone/rclone/commit/57842c5ee4e1407ed...
x_refsource_MISC
https://github.com/rclone/rclone/releases/tag/v1.75.1
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.