CVE-2026-41179

Description

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.

Weakness classification

• security-advisories@github.com: CWE-78
• 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-94

Primary references

• security-advisories@github.com — Product
• security-advisories@github.com — Product
• security-advisories@github.com — Product
• security-advisories@github.com
• security-advisories@github.com
• security-advisories@github.com — Exploit, Vendor Advisory
• security-advisories@github.com
• 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
• 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
• 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Vendor Advisory
• 0b0ca135-0b70-47e7-9f44-1890c2a1c46c