{"id":"UBUNTU-CVE-2026-55567","details":"BleachBit cleans files to free disk space and to maintain privacy. Prior to 6.0.1, privileged Windows cleaning does not lock and validate a target's parent directory before deletion. A local unprivileged user can replace that directory with a Windows junction and use a native symlink to redirect the elevated deletion to an attacker-selected file. The arbitrary privileged file deletion can be combined with Windows Installer behavior to obtain local SYSTEM privileges. This issue is fixed in version 6.0.1.","modified":"2026-09-23T02:00:06.387124188Z","published":"2026-09-22T00:00:00Z","withdrawn":"2026-09-22T23:38:44Z","upstream":["CVE-2026-55567"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-55567"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-55567"},{"type":"REPORT","url":"https://github.com/bleachbit/bleachbit/commit/ee128238e92c7192f0c4d6406b1bd0cd9155e7e0"},{"type":"REPORT","url":"https://github.com/bleachbit/bleachbit/pull/1774"},{"type":"REPORT","url":"https://github.com/bleachbit/bleachbit/releases/tag/v6.0.1"},{"type":"REPORT","url":"https://github.com/bleachbit/bleachbit/security/advisories/GHSA-vcjw-px28-5w94"}],"affected":[{"package":{"name":"bleachbit","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/bleachbit?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8-1","1.10-1"],"ecosystem_specific":{"binaries":[{"binary_name":"bleachbit","binary_version":"1.10-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55567.json"}},{"package":{"name":"bleachbit","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/bleachbit?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.12-1","1.15-2","2.0-1","2.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"bleachbit","binary_version":"2.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55567.json"}},{"package":{"name":"bleachbit","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/bleachbit?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2-3","3.0-1","3.9.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"bleachbit","binary_version":"3.9.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55567.json"}},{"package":{"name":"bleachbit","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/bleachbit?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.9.0-1","3.9.0-2","4.4.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"bleachbit","binary_version":"4.4.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55567.json"}},{"package":{"name":"bleachbit","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/bleachbit?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.4.2-2","4.6.0-1","4.6.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"bleachbit","binary_version":"4.6.0-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55567.json"}},{"package":{"name":"bleachbit","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/bleachbit?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.6.2-2","5.0.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"bleachbit","binary_version":"5.0.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-55567.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}