CVE-2026-26158

HIGH

Red Hat Enterprise Linux 6 - Path Traversal via Malicious Tar Archive Extraction

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.

References (5)

Core 5
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
RHSA-2026:13831
https://access.redhat.com/errata/RHSA-2026:13831
Vendor Advisory vdb-entry x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2026-26158
Issue Tracking issue-tracking x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2439040

Scores

CVSS v3 7.0
EPSS 0.0015
EPSS Percentile 4.9%
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 (4)
Red Hat/Red Hat Enterprise Linux 6
Red Hat/Red Hat Hardened Images
Red Hat/Red Hat Hardened Images 1.37.0-7.2.hum1
Red Hat/Red Hat Hardened Images 1
Published Feb 11, 2026
Tracked Since Feb 18, 2026