CVE-2026-41179
criticalRclone is a command-line program to sync files and directories to and from different cloud storage providers.
Vendor / product: Rclone — rclone
Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/web... security-advisories@github.com
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operatio... security-advisories@github.com
- https://github.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache... security-advisories@github.com
- https://github.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3b security-advisories@github.com
- https://github.com/rclone/rclone/releases/tag/v1.73.5 security-advisories@github.com
- https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q security-advisories@github.com
- https://rclone.org/changelog/#v1-73-5-2026-04-19 security-advisories@github.com
- https://access.redhat.com/security/cve/CVE-2026-41179 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://bugzilla.redhat.com/show_bug.cgi?id=2460988 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- https://github.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q 134c704f-9b21-4f2e-91b3-4a467353bcc0
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41179.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c