Arbitrary host mounts via traversal volume names
Published Sep 19, 2026 · Updated Sep 19, 2026
Path traversal in Rclone rclone 1.56.0 through 1.75.0 allows local users to mount remote filesystems at arbitrary host paths. newVolume() joins an untrusted volume name to drv.root without checking confinement, after which checkMountpoint() creates the resolved directory and mounts the request-selected remote; restoreState() also trusted persisted mountpoints. Access to the Docker volume plugin socket, normally equivalent to Docker-daemon privileges, is required, and exploitation can shadow or disrupt host directories.
Summary
What happened
Path traversal in Rclone rclone 1.56.0 through 1.75.0 allows local users to mount remote filesystems at arbitrary host paths. newVolume() joins an untrusted volume name to drv.root without checking confinement, after which checkMountpoint() creates the resolved directory and mounts the request-selected remote; restoreState() also trusted persisted mountpoints. Access to the Docker volume plugin socket, normally equivalent to Docker-daemon privileges, is required, and exploitation can shadow or disrupt host directories.
The record
- CVE
- CVE-2026-93987
- Published
- Sep 19, 2026
- Updated
- Sep 19, 2026
- Vendor
- Rclone
- Product
- rclone
- Classifications
- CWE-22
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Sep 19, 2026CVE publishedPublication date reported by the CVE source.
- Sep 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.56.0 <1.75.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
- Volume-name path traversal proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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