{"id":"UBUNTU-CVE-2026-48700","details":"An issue was discovered in all versions of PCManFM-Qt starting from 1.1.0. When a regular file's path is passed as a URI in an org.freedesktop.FileManager1.ShowFolders D-Bus method call, PCManFM-Qt delegates to a different program (based on the file type) without user confirmation. This could be used to achieve code execution or circumvent network namespace restrictions. NOTE: those outcomes are potentially unwanted by most users; however, the behavior of the product does comply with the applicable specification, and a simplistic solution (ensuring that the URI does not name a regular file) may have adverse consequences for I/O.","modified":"2026-05-27T19:09:52Z","published":"2026-05-22T19:17:00Z","upstream":["CVE-2026-48700"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-48700"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-48700"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2026/05/20/2"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2026/05/19/1"},{"type":"REPORT","url":"https://github.com/lxqt/pcmanfm-qt/releases"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2026/05/24/6"}],"affected":[{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.0+20150908-1","0.9.0+20150908-2","0.10.0-1ubuntu1","0.10.1-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10.1-2","binary_name":"pcmanfm-qt"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}},{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.11.3-4","0.12.0-1","0.12.0-2","0.12.0-3","0.12.0-4","0.12.0-5"],"ecosystem_specific":{"binaries":[{"binary_name":"pcmanfm-qt","binary_version":"0.12.0-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}},{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.14.1-0ubuntu2","0.14.1-0ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"pcmanfm-qt","binary_version":"0.14.1-0ubuntu3"},{"binary_name":"pcmanfm-qt-l10n","binary_version":"0.14.1-0ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}},{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.0-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"pcmanfm-qt","binary_version":"0.17.0-0ubuntu1"},{"binary_version":"0.17.0-0ubuntu1","binary_name":"pcmanfm-qt-l10n"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}},{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-0ubuntu1","1.4.0-0ubuntu2","1.4.0-0ubuntu3","1.4.1-0ubuntu1","1.4.1-0ubuntu4","1.4.1-0ubuntu5","1.4.1-0ubuntu6"],"ecosystem_specific":{"binaries":[{"binary_name":"pcmanfm-qt","binary_version":"1.4.1-0ubuntu6"},{"binary_version":"1.4.1-0ubuntu6","binary_name":"pcmanfm-qt-l10n"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}},{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.0-0ubuntu3","2.2.0-0ubuntu1","2.2.0-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"pcmanfm-qt","binary_version":"2.2.0-0ubuntu2"},{"binary_name":"pcmanfm-qt-l10n","binary_version":"2.2.0-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}},{"package":{"name":"pcmanfm-qt","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/pcmanfm-qt?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0-0ubuntu2","2.2.0-0ubuntu3","2.3.0-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"pcmanfm-qt","binary_version":"2.3.0-0ubuntu2"},{"binary_name":"pcmanfm-qt-l10n","binary_version":"2.3.0-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48700.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/AU:N/R:I/V:D/RE:M/U:Clear"},{"type":"Ubuntu","score":"medium"}]}