---
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: '2026-09-24'
sourceUpdated: '2026-09-24T21:16:28.120'
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
epss: 0.00135
epssPercentile: 0.02424
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-21T15:13:41.630098Z'
ingestedAt: '2026-09-21T14:38:56.367Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.