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Incorrect Authorization Affecting rclone-compat package, versions <1.75.1-r0

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.49% (41st percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-RCLONECOMPAT-19958097
  • published20 Sept 2026
  • disclosed10 Sept 2026
Report a new vulnerability Found a mistake?

Introduced: 10 Sep 2026

NewCVE-2026-88044  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Minimos:latest rclone-compat to version 1.75.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rclone-compat package and not the rclone-compat package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.70.0 until 1.75.1, the serve/start RC interface accepts per-server proxyOpt.AuthProxy settings, and the FTP and S3 constructors in cmd/serve/ftp/ftp.go and cmd/serve/s3/server.go incorrectly check the process-global proxy.Opt.AuthProxy value instead. When the global value is empty, the request-local authentication proxy is ignored: FTP falls back to the fixed filesystem with username anonymous and any password, while S3 with AuthKey serves the fixed RC fs rather than the backend selected by the proxy. The dedicated command-line servers that configure the global option are not affected. This issue is fixed in version 1.75.1.