CVE-2026-41176
Rclone: Unauthenticated options/set allows runtime auth bypass, leading to sensitive operations and command execution
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.
How to fix CVE-2026-41176
To remediate CVE-2026-41176, upgrade the affected package to a fixed version below.
- —upgrade to 1.73.5 or later
- —no fix listed
- —upgrade to 1.73.5 or later
- —upgrade to 1.73.5 or later
Is CVE-2026-41176 being exploited?
Moderate — EPSS is 26.3%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- >= 1.45.0, < 1.73.5
- from 0
- >= 1.45.0, < 1.73.5
- from 0, < 1.73.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |