CVE-2026-54707

OnionShare Receive mode writes uploaded files even when file uploads are disabled

Published Jul 31, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-v833-3823-cmhp OnionShare Receive mode writes uploaded files even when file uploads are disabled
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Onionshare
Onionshare onionshare
Vendors & Products Onionshare
Onionshare onionshare
Type Values Removed Values Added
Description 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.
Title OnionShare Receive mode writes uploaded files even when file uploads are disabled
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jul 31, 2026, 11:28 PM
Reserved
Jun 15, 2026, 10:58 PM
Status
Deferred
Published
Jul 31, 2026, 5:16 PM
Modified
Sep 10, 2026, 8:12 PM