Vulnerability Description
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate global runtime configuration, including the RC option block itself. Starting in version 1.45.0 and prior to version 1.73.5, an unauthenticated attacker can set `rc.NoAuth=true`, which disables the authorization gate for many RC methods registered with `AuthRequired: true` on reachable RC servers that are started without global HTTP authentication. This can lead to unauthorized access to sensitive administrative functionality, including configuration and operational RC methods. Version 1.73.5 patches the issue.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rclone | Rclone | >= 1.45, < 1.73.5 |
Related Weaknesses (CWE)
References
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fProduct
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fProduct
- https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qxExploitVendor Advisory
- https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qxExploitVendor Advisory
FAQ
What is CVE-2026-41176?
CVE-2026-41176 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Rclone is a command-line program to sync files and directories to and from different cloud storage providers. The RC endpoint `options/set` is exposed without `AuthRequired: true`, but it can mutate g...
How severe is CVE-2026-41176?
CVE-2026-41176 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-41176?
Check the references section above for vendor advisories and patch information. Affected products include: Rclone Rclone.