CVE-2026-88013
Description
rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.49.0 until 1.75.1, the HTTP backend attaches headers configured through --http-headers or headers= to requests in backend/http/http.go, while its fshttp.NewClient client follows redirects without a backend-specific http.Client.CheckRedirect policy. A configured remote that redirects to another host can therefore cause custom secrets such as X-Api-Key to be resent to that untrusted destination, and a same-host HTTPS-to-HTTP redirect can expose Authorization or Cookie headers in cleartext. Listing, stat, download, mount, and serve operations can trigger the leak during normal use. This issue is fixed in version 1.75.1.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/rclone/rclone/commit/22859b7e696cea3c563c6ba04c6b7f91f74456b4
- https://github.com/rclone/rclone/commit/79fbc0842f74e02cb84f0e3e7261d169983c8831
- https://github.com/rclone/rclone/commit/925fb4fb21eb25e75cd1b64fdd17ded857784bfc
- https://github.com/rclone/rclone/releases/tag/v1.75.1
- https://github.com/rclone/rclone/security/advisories/GHSA-486v-q2wf-fp2r
CWEs
CWE-200 CWE-319 CWE-522
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.