CVE-2026-49980

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.

• CWE-306
• CWE-78

• https://github.com/rclone/rclone/security/advisories/GHSA-qw24-gh76-8rvvMitigation, Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2026-49980Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2492478Issue Tracking, Third Party Advisory
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49980.jsonThird Party Advisory

Published

Jun 24, 2026

Last Modified

Aug 7, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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