Bug 2500770 (CVE-2026-59733)

Summary: CVE-2026-59733 rclone: Rclone: Unauthorized access to private repositories via directory traversal
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Rclone. When using the `rclone serve restic --private-repos` command, an authenticated user can include directory traversal sequences (e.g., `..`) in a request. This allows them to bypass authorization and read, overwrite, or delete another user's private repository on backends that clean path components. This vulnerability can lead to significant information disclosure, data integrity issues, and denial of service for other users' data.
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Description OSIDB Bzimport 2026-07-14 22:05:53 UTC 
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, rclone serve restic --private-repos enforces authorization using the routed user path segment while building the backend object key from the raw uncleaned URL path, allowing an authenticated user to include .. in a request such as //..//config and read, overwrite, or delete another user's private repository on backends that clean path components. This issue is fixed in version 1.74.4.