CVE-2026-55567
BleachBit: Exploit File Delete to Escalate Privilege
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-367 |
| Vendor | bleachbit |
| Product | bleachbit |
| Published | Sep 21, 2026 |
| Last Updated | Sep 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
bleachbit / bleachbit
< 6.0.1
References
github.com: https://github.com/bleachbit/bleachbit/security/advisories/GHSA-vcjw-px28-5w94 github.com: https://github.com/bleachbit/bleachbit/pull/1774 github.com: https://github.com/bleachbit/bleachbit/commit/ee128238e92c7192f0c4d6406b1bd0cd9155e7e0 github.com: https://github.com/bleachbit/bleachbit/releases/tag/v6.0.1