Bug 2531799 - CVE-2026-88046 rclone: rclone: Unauthorized data modification via path traversal in source object names [epel-all]
Summary: CVE-2026-88046 rclone: rclone: Unauthorized data modification via path traver...
Keywords:
Status: NEW
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: rclone
Version: epel10
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Mikel Olasagasti Uranga
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["75e61e25-5d94-4b26-a521-9...
Depends On:
Blocks: CVE-2026-88046
TreeView+ depends on / blocked
 
Reported: 2026-09-11 08:45 UTC by Matteo Signorini
Modified: 2026-09-11 08:45 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:


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Description Matteo Signorini 2026-09-11 08:45:35 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, rclone core does not reject parent-directory segments in source Object.Remote() values before fs/list, fs/walk, fs/sync, and fs/operations pass those values to destination backends. A flat-keyspace source object store populated with native non-rclone tooling can contain a raw .. key segment, and affected b2, swift, qingstor, oracleobjectstorage, internetarchive, smb, storj, sftp, webdav, ftp, filelu, shade, and sia destinations use path.Join(root, remote) before EncodeDot can neutralize the segment. A copy or upload can therefore escape the configured root into another bucket, share, or path reachable by the victim credential, with sftp and smb potentially reaching other filesystem or share locations under the same login authority. This issue is fixed in version 1.75.1.


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