RClone Manager: Unauthenticated RClone Daemon Enables Remote Attack via Malicious Web Page

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-55183
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 17:17:41 UTC
Updated2026-10-16 20:04:29 UTC
DescriptionRClone 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.

Risk And Classification

Primary CVSS: v3.1 9.6 CRITICAL from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS: 0.004150000 probability, percentile 0.343600000 (date 2026-10-16)

Problem Types: CWE-306 | CWE-306 CWE-306: Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED9.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Zarestia-Dev Rclone-manager affected < 0.2.7 Not specified

References

ReferenceSourceLinkTags
github.com/Zarestia-Dev/rclone-manager/security/advisories/GHSA-f3qj-7hx... 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/Zarestia-Dev/rclone-manager/releases/tag/v0.2.7 [email protected] github.com
github.com/Zarestia-Dev/rclone-manager/commit/daa379498fc1aac453bcf1864d... [email protected] github.com
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