CVE-2026-55567

7.8 HIGHpublic exploit available

Published 2026-09-21 · Updated 2026-09-21

AI risk analysis

Summary: The flaw allows a local unprivileged user to replace a target directory with a Windows junction and symlink, enabling arbitrary privileged file deletion which can lead to SYSTEM privileges.
Exploitability: Exploitation requires preconditions such as access to a vulnerable BleachBit version and the ability to manipulate directory structures; moderately hard.
Blast radius: If exploited, it could result in full system compromise for the affected machine.
Prioritized remediation: Update BleachBit to version 6.0.1 or later immediately.

local-privilege-escalationfile-deletionjunctionsymlink

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD 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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-367

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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