CVE-2026-54707

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Prior to 2.6.4, OnionShare CLI/Desktop does not enforce the Receive mode disable_files setting in cli/onionshare_cli/web/receive_mode.py, where ReceiveModeRequest._get_file_stream() writes multipart file[] data to disk despite the text-only setting. This issue is fixed in version 2.6.4.

• CWE-863

• https://github.com/onionshare/onionshare/commit/a090e97193efc91fbeac9dace7793ea568b83cf5
• https://github.com/onionshare/onionshare/releases/tag/v2.6.4
• https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp
• https://github.com/onionshare/onionshare/security/advisories/GHSA-v833-3823-cmhp

Published

Jul 31, 2026

Last Modified

Aug 1, 2026

Status

Received

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