CVE-2026-55183CWE-306

CVE-2026-55183

Critical · published October 13, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
34.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00415 · 34.8th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-10-13T21:17Z
References (4)
EPSS history
Timeline
  • 15 OCT 03:32Z
    EPSS moved — → 0%
    epss
  • 13 OCT 16:19Z
    RClone Manager: Unauthenticated RClone Daemon Enables Remote Attack via Malicious Web Page
    cvelistv5
  • 13 OCT 16:19Z
    RClone Manager: Unauthenticated RClone Daemon Enables Remote Attack via Malicious Web Page
    cvelistv5