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CVE-2026-32108— Copyparty ftp/sftp: Sharing a single file did not fully restrict source-folder access

Quick assessment

Affected
9001 copyparty
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Copyparty是ed个人开发者的一个便携式文件服务器。 Copyparty 1.20.12之前版本存在安全漏洞，该漏洞源于共享功能缺少权限检查，可能导致用户通过FTP或SFTP访问共享文件夹内的其他文件。

AI Predicted 5.3 Difficulty: Easy EPSS 0.34% · P25
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I. Basic Information for CVE-2026-32108

Vulnerability Information
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Vulnerability Title
Copyparty ftp/sftp: Sharing a single file did not fully restrict source-folder access
Source: CVE Program / CVE List V5
Vulnerability Description
Copyparty is a portable file server. Prior to 1.20.12, there was a missing permission-check in the shares feature (the shr global-option). This vulnerability only applies when the shares feature is used for the specific purpose of creating a share of just a single file inside a folder or either the FTP or SFTP server is enabled, and also made publicly accessible. Given these conditions, when a user is browsing a share through either FTP or SFTP (not http or https), they can gain read-access to the remaining files inside the shared folder by guessing/bruteforcing the filenames. It was not possible to descend into subdirectories in this manner; only the sibling files were accessible. This vulnerability is similar to CVE-2025-58753 which was previously fixed for HTTP and HTTPS, but not for FTP. The FTPS server did not yet exist at that time. This vulnerability is fixed in 1.20.12.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Copyparty 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Copyparty是ed个人开发者的一个便携式文件服务器。 Copyparty 1.20.12之前版本存在安全漏洞，该漏洞源于共享功能缺少权限检查，可能导致用户通过FTP或SFTP访问共享文件夹内的其他文件。
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
9001 copyparty < 1.20.12 -

II. Public POCs for CVE-2026-32108

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III. Intelligence Information for CVE-2026-32108

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Vendor Advisories for CVE-2026-32108 (1)

IV. Related Vulnerabilities

Same product: copyparty
Same vendor: 9001
Same weakness: CWE-863

V. Comments for CVE-2026-32108

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