CVE-2026-41176
CRITICALCVSS v3.1: 9.8 · EPSS: 0.3453 (98.2 percentile)
Source data as of:
At a glance
- Severity
- CRITICAL
- CVSS
- 9.8 v3.1 · NVD
- EPSS
- 0.3453 (98.2 percentile) · FIRST.org
- CISA KEV
- No
- Type
- Missing Authentication · NVD CWE
- Attack conditions (CVSS vector)
- NetworkNo privilegesNo user interaction · Source: NVD Vector
- Affected vendors
- rclone
- Published
- 2026-04-23 · Modified: 2026-06-30
- References
- Jump to references (6)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
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.
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Reference https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/confi…
- Reference https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/rcser…
- Vendor advisory https://github.com/rclone/rclone/security/advisories/GHSA-25qr-6mpr-f7qx
- Distro https://access.redhat.com/security/cve/CVE-2026-41176
- Distro https://bugzilla.redhat.com/show_bug.cgi?id=2460989
- Distro https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41176.json