Vulnerability · Published Oct 13, 2026 · Assigned by GitHub_M
CVE-2026-55183RClone Manager: Unauthenticated RClone Daemon Enables Remote Attack via Malicious Web Page
Critical 9.6
In plain English
A critical-severity missing authentication in rclone-manager from Zarestia-Dev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Official description
RClone Manager is a cross-platform GUI application designed to help users manage Rclone remotes efficiently. Prior to 0.2.7, RClone Manager starts the local rclone rcd service on 127.0.0.1:51900 with --rc-no-auth, --rc-allow-origin *, and --rc-serve. A malicious web page opened by a user while the daemon is running can therefore send cross-origin requests to the unauthenticated local API with the user's operating-system privileges. The requests can disclose configured storage credentials and potentially access, upload, modify, or exfiltrate locally stored files accessible to the user and files available through configured remotes; the advisory's possible command-execution impact remains unconfirmed. This issue is fixed in version 0.2.7.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Zarestia-Dev | rclone-manager | < 0.2.7 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- https://github.com/Zarestia-Dev/rclone-manager/security/advisories/GHSA-f3qj-7hx5-q4c8 x_refsource_CONFIRM
- https://github.com/Zarestia-Dev/rclone-manager/commit/daa379498fc1aac453bcf1864d7ea072b80ffbe8 x_refsource_MISC
- https://github.com/Zarestia-Dev/rclone-manager/releases/tag/v0.2.7 x_refsource_MISC