CVE-2026-26158
Busybox: busybox: arbitrary file modification and privilege escalation via unvalidated tar archive entries
CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.
| CWE | CWE-73 |
| Vendor | red hat |
| Product | red hat enterprise linux 6 |
| Published | Feb 11, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Hardened Images
All versions affected References
Credits
Red Hat would like to thank Calil Khalil (Hakal) for reporting this issue.