{"id":"CVE-2026-55567","title":"BleachBit cleans files to free disk space and to maintain privacy","summary":"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 w…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-367"],"vendor":"bleachbit","product":"bleachbit","affected":["bleachbit < 6.0.1"],"published":"2026-09-21","updated":"2026-09-21","sourceUpdated":"2026-09-21T16:17:09.557","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55567","references":[{"url":"https://github.com/bleachbit/bleachbit/commit/ee128238e92c7192f0c4d6406b1bd0cd9155e7e0","label":"security-advisories@github.com"},{"url":"https://github.com/bleachbit/bleachbit/pull/1774","label":"security-advisories@github.com"},{"url":"https://github.com/bleachbit/bleachbit/releases/tag/v6.0.1","label":"security-advisories@github.com"},{"url":"https://github.com/bleachbit/bleachbit/security/advisories/GHSA-vcjw-px28-5w94","label":"security-advisories@github.com"},{"url":"https://github.com/bleachbit/bleachbit/security/advisories/GHSA-vcjw-px28-5w94","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-21T15:13:41.630098Z"},"ingestedAt":"2026-09-21T14:38:56.367Z","slug":"CVE-2026-55567","body":"## Overview\n\nBleachBit 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":208545,"id":"CVE-2026-55567","ts":1790008114286,"field":"exploit_available","old":"false","new":"true"}]}