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Rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.46.0 until 1.74.3, rclone rcd --rc-serve accepts unauthenticated GET and HEAD requests to paths of the form: /[remote:path]/object. The remote value is parsed from the URL and passed to normal backend initialization. Inline remote configuration can set backend options that execute local commands during initialization. As a result, a single unauthenticated GET or HEAD request can execute a command as the rclone process user. This vulnerability is fixed in 1.74.3.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade rclone-debuginfoUpgrade rclone | Jul 7, 2026 | Jul 7, 2026 |
| Amazon_linux_2023 | — | Upgrade rclone-debugsourceUpgrade rclone-debuginfoUpgrade rclone | Jun 30, 2026 | Jun 24, 2026 |
| Freebsd | — | Upgrade rclone | Jun 30, 2026 | Jun 29, 2026 |
| Ubuntu | — | Upgrade rclone | Sep 21, 2026 | Sep 18, 2026 |
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