Description
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.74.4, rclone serve restic --private-repos enforces authorization using the routed user path segment while building the backend object key from the raw uncleaned URL path, allowing an authenticated user to include .. in a request such as //..//config and read, overwrite, or delete another user's private repository on backends that clean path components. This issue is fixed in version 1.74.4.
Affected products
rclone: rclone
References4
- github.com/rclone/rclone/security/advisories/GHSA-fqj9-69pf-6pjg ExploitMitigationVendor Advisory
- github.com/rclone/rclone/commit/015fd0eba1cb138eef081517795fed4… Patch
- github.com/rclone/rclone/commit/dade21c1616035b044df0eef7ee6a85… Patch
- github.com/rclone/rclone/releases/tag/v1.74.4 Release Notes
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 47 · as of 15 November 2026
- CWE
- CWE-22CWE-639
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.