CVE-2026-55567

7.8 HIGHpublic exploit available

Published 2026-09-21 · Updated 2026-09-24

AI risk analysis

Summary: The flaw allows a local unprivileged user to replace a target directory with a Windows junction and symlink to redirect privileged file deletions to attacker-selected files, potentially obtaining SYSTEM privileges.
Exploitability: Exploitation requires local unprivileged access and the ability to manipulate directory structures. Precondition is the presence of a vulnerable BleachBit version prior to 6.0.1.
Blast radius: If exploited, the attacker can gain full control over the system, leading to severe data loss and unauthorized access.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to BleachBit version 6.0.1 or later.

rceprivilege-escalationlocal-attack

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

References

Data: NVD (public domain). Analysis: local $0 model. Defensive use only.