CVE-2026-32108
Missing Permission Check in Copyparty FTP/SFTP Enables File Disclosure
Publication date: 2026-03-11
Last updated on: 2026-03-13
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| 9001 | copyparty | to 1.20.12 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in Copyparty versions prior to 1.20.12 and involves a missing permission check in the shares feature when using the shr global-option.
It only applies if a share is created for a single file inside a folder and either the FTP or SFTP server is enabled and made publicly accessible.
Under these conditions, a user browsing the share via FTP or SFTP can guess or brute-force filenames to gain read access to other files in the same folder, although they cannot access subdirectories.
This issue was fixed in version 1.20.12.
How can this vulnerability impact me? :
If you use the shares feature of Copyparty to share a single file inside a folder and have FTP or SFTP enabled and publicly accessible, an attacker could gain unauthorized read access to other files in the same folder by guessing their filenames.
This could lead to unintended disclosure of sensitive or private files stored alongside the shared file.
However, the attacker cannot access files in subdirectories, only sibling files in the same folder.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, upgrade Copyparty to version 1.20.12 or later where the missing permission check in the shares feature has been fixed.
Additionally, avoid using the shares feature to create a share of a single file inside a folder when FTP or SFTP servers are enabled and publicly accessible.