CVE-2026-55567

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-367

• https://github.com/bleachbit/bleachbit/commit/ee128238e92c7192f0c4d6406b1bd0cd9155e7e0
• https://github.com/bleachbit/bleachbit/pull/1774
• https://github.com/bleachbit/bleachbit/releases/tag/v6.0.1
• https://github.com/bleachbit/bleachbit/security/advisories/GHSA-vcjw-px28-5w94
• https://github.com/bleachbit/bleachbit/security/advisories/GHSA-vcjw-px28-5w94

Published

Sep 21, 2026

Last Modified

Sep 24, 2026

Status

Awaiting Analysis

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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