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CVE-2026-41179— RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution

Quick assessment

Affected
rclone rclone
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rclone是Rclone团队的一个可以从云存储异步同步数据的软件。该软件支持 Google Drive, Amazon Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Cloudfiles, Google Cloud Storage, Yandex Files等云存储。 Rclone 1.48.0版本至1.73.5之前版本存在操作系统命令注入漏洞，该漏洞源于RC端点operations/fsinfo未设置AuthRequired且接受

AI Predicted 9.8 Difficulty: Trivial EPSS 5.30% · P92

Public Exploits 1

Nuclei · 1 CVE-2026-41179.yaml [template]

Affected Version Matrix 1

VendorProduct Version RangeStatus
rclone rclone >= 1.48.0, < 1.73.5 affected
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I. Basic Information for CVE-2026-41179

Vulnerability Information
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Vulnerability Title
RClone: Unauthenticated operations/fsinfo allows attacker-controlled backend instantiation and local command execution
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Rclone 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rclone是Rclone团队的一个可以从云存储异步同步数据的软件。该软件支持 Google Drive, Amazon Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Cloudfiles, Google Cloud Storage, Yandex Files等云存储。 Rclone 1.48.0版本至1.73.5之前版本存在操作系统命令注入漏洞，该漏洞源于RC端点operations/fsinfo未设置AuthRequired且接受
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rclone rclone >= 1.48.0, < 1.73.5 -

II. Public POCs for CVE-2026-41179

# POC Description Source Link Shenlong Link
1 Rclone >= 1.48.0 and < 1.73.5 contains an unauthenticated local command execution caused by unauthenticated access to the RC endpoint operations/fsinfo with attacker-controlled fs input, letting unauthenticated attackers execute local commands, exploit requires reachable RC deployment without global HTTP authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-41179.yaml POC Details
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III. Intelligence Information for CVE-2026-41179

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Patches & Fixes for CVE-2026-41179 (1)

Vendor Advisories for CVE-2026-41179 (1)

Vendor Pages for CVE-2026-41179 (1)

Other References for CVE-2026-41179 (1)

IV. Related Vulnerabilities

Same product: rclone
Same vendor: rclone
Same weakness: CWE-78

V. Comments for CVE-2026-41179

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