Path traversal in serve restic in github.com/rclone/rclone
In rclone serve restic, the WithRemote middleware fails to properly sanitize URL paths beginning with "../" or containing ".". Because path.Clean preserves leading parent directory components in relative paths, requests with leading traversal sequences bypass validation. On affected backends (such as WebDAV, FTP, SFTP, HTTP, and memory), an attacker with access to the REST endpoint can read, create, overwrite, or delete objects outside the configured root directory.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-71309US | — | — | ||
rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.40.0 until 1.75.0, rclone serve restic does not correctly rejec… | ||||
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references
External citations — patches, advisories, analysis.
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