CVE-2026-88044

NameCVE-2026-88044
Descriptionrclone 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rclone (PTS)bookworm1.60.1+dfsg-2vulnerable
trixie1.60.1+dfsg-4vulnerable
sid1.69.3+dfsg-3vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
rclonesource(unstable)(unfixed)

Notes

https://github.com/rclone/rclone/security/advisories/GHSA-p569-5gjg-9cmj
Fixed by: https://github.com/rclone/rclone/commit/739403963abf6f58003c2becd5f7c4ad0d644153 (v1.75.1)

Search for package or bug name: Reporting problems