What’s Vulnerable › Vulnerabilities

CVE-2026-55183: RClone Manager: Unauthenticated RClone Daemon Enables Remote Attack via Malicious Web Page

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-16
• Weakness: CWE-306

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

• Zarestia-Dev rclone-manager: before 0.2.7

References

• https://github.com/Zarestia-Dev/rclone-manager/commit/daa379498fc1aac453bcf1864d7ea072b80ffbe8
• https://github.com/Zarestia-Dev/rclone-manager/releases/tag/v0.2.7
• https://github.com/Zarestia-Dev/rclone-manager/security/advisories/GHSA-f3qj-7hx5-q4c8
• https://github.com/Zarestia-Dev/rclone-manager/security/advisories/GHSA-f3qj-7hx5-q4c8

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