{"id":"UBUNTU-CVE-2026-54706","details":"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.","modified":"2026-08-06T03:10:21.040383793Z","published":"2026-07-31T17:16:00Z","upstream":["CVE-2026-54706"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-54706"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-54706"},{"type":"REPORT","url":"https://github.com/onionshare/onionshare/security/advisories/GHSA-22p9-r2f5-22mf"}],"affected":[{"package":{"name":"onionshare","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/onionshare?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.7-1","0.7.1-1","0.8.1-1","0.8.1-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.8.1-1ubuntu0.1~esm1","binary_name":"onionshare"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54706.json"}},{"package":{"name":"onionshare","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/onionshare?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.2-1","0.9.2-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"onionshare","binary_version":"0.9.2-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54706.json"}},{"package":{"name":"onionshare","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/onionshare?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1-1","2.2-1","2.2-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"onionshare","binary_version":"2.2-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54706.json"}},{"package":{"name":"onionshare","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/onionshare?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2-3","2.2-3ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2-3ubuntu0.1~esm1","binary_name":"onionshare"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54706.json"}},{"package":{"name":"onionshare","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/onionshare?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6-5","2.6-6ubuntu1","2.6-6ubuntu1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"onionshare","binary_version":"2.6-6ubuntu1.1"},{"binary_name":"onionshare-cli","binary_version":"2.6-6ubuntu1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54706.json"}},{"package":{"name":"onionshare","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/onionshare?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6.3-1","2.6.3-1build1","2.6.3-3"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.3-3","binary_name":"onionshare"},{"binary_name":"onionshare-cli","binary_version":"2.6.3-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-54706.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}