Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Rclone vulnerabilities (USN-8299-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8299-1 advisory. It was discovered that Rclone incorrectly handled authorization in the remote control API. An attacker could...

JLSEC-2026-281 RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution

Summary The RC endpoint operations/fsinfo is exposed without AuthRequired: true and accepts attacker-controlled fs input. Because rc.GetFs... supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend,...

Missing Authentication for Critical Function

Overview Affected versions of this package are vulnerable to Missing Authentication for Critical Function in the options/set endpoint. An attacker can set rc.NoAuth=true and override default AuthRequired: true which can lead to unauthorized access to sensitive administrative functionality,...

Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution

Summary The RC endpoint options/set is exposed without AuthRequired: true, but it can mutate global runtime configuration, including the RC option block itself. An unauthenticated attacker can set rc.NoAuth=true, which disables the authorization gate for many RC methods registered with...