CVE-2026-26158

HIGH

BusyBox - Privilege Escalation

Title source: llm
STIX 2.1

Description

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.

Scores

CVSS v3 7.0
EPSS 0.0001
EPSS Percentile 0.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-73
Status published
Products (3)
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Hardened Images
Red Hat/Red Hat Hardened Images 1
Published Feb 11, 2026
Tracked Since Feb 18, 2026