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.
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Thu, 10 Sep 2026 17:30:00 +0000
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Thu, 10 Sep 2026 15:45:00 +0000
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| 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. | |
| Title | rclone: http backend forwards custom/auth headers to a different host on redirect | |
| Weaknesses | CWE-200 CWE-319 CWE-522 |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-10T15:39:56.206Z
Updated: 2026-09-10T16:12:49.701Z
Reserved: 2026-09-09T19:19:27.407Z
Link: CVE-2026-88013
Updated: 2026-09-10T16:12:18.325Z
Status : Awaiting Analysis
Published: 2026-09-10T16:18:08.203
Modified: 2026-09-10T19:54:25.810
Link: CVE-2026-88013
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