CVE-2026-54706: Onionshare

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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 follows symbolic links in cli/onionshare_cli/web/send_base_mode.py through SendBaseModeWeb.set_file_info() and stream_individual_file(), allowing remote recipients of Share or Website mode to read local files outside the selected directory. This issue is fixed in version 2.6.4.

Affected products

• Onionshare Onionshare: before 2.6.4 (fixed in 2.6.4)

Published 2026-07-31. Last modified 2026-09-10.