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CVE-2026-55567— BleachBit: Exploit File Delete to Escalate Privilege

Quick assessment

Affected
bleachbit bleachbit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 7.8 · High EPSS 0.14% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
bleachbit bleachbit < 6.0.1 affected
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I. Basic Information for CVE-2026-55567

Vulnerability Information

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Vulnerability Title
BleachBit: Exploit File Delete to Escalate Privilege
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
bleachbit bleachbit < 6.0.1 -

II. Public POCs for CVE-2026-55567

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III. Intelligence Information for CVE-2026-55567

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Patches & Fixes for CVE-2026-55567 (2)

Exploits & Public PoCs for CVE-2026-55567 (1)

Other References for CVE-2026-55567 (1)

IV. Related Vulnerabilities

Same product: bleachbit
Same vendor: bleachbit
Same weakness: CWE-367

V. Comments for CVE-2026-55567

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