CVE-2026-49980: Rclone

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

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.

Affected products

• Rclone Rclone: from 1.46, before 1.74.3 (fixed in 1.74.3)

Published 2026-06-24. Last modified 2026-08-07.