CVE-2026-88044Critical· 9.1▾ AbyssalPoC availablerclone 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 const…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 50.1 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 11.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Exploit / PoC code exists
0.5%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/rclone/rclone >= 1.70.0, < 1.75.1Patched in:
github.com/rclone/rclone 1.75.1Source: https://osv.dev/vulnerability/GHSA-p569-5gjg-9cmj
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-88018Critical· 9.8rclone is a command-line program to sync files and directories to and from different cloud storage providers
CVE-2026-88015Medium· 5.3rclone is a command-line program to sync files and directories to and from different cloud storage providers
CVE-2026-88016High· 7.1rclone is a command-line program to sync files and directories to and from different cloud storage providers
CVE-2026-88017High· 7.3rclone is a command-line program to sync files and directories to and from different cloud storage providers
CVE-2026-88013Low· 3.7rclone is a command-line program to sync files and directories to and from different cloud storage providers
CVE-2026-88045High· 7.5rclone is a command-line program to sync files and directories to and from different cloud storage providers