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BleachBit: Exploit File Delete to Escalate Privilege

CVSS 3.1 7.8 HIGHCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-55567

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-55567

Published

bleachbit

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "bleachbit",
                    "product": "bleachbit",
                    "versions": [
                        {
                            "version": "< 6.0.1",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

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Sources read 13 Nov 00:55 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current