---
id: CVE-2026-108119
title: A flaw was found in busybox
summary: >-
  A flaw was found in busybox. The tar applet's deferred link-creation handling
  for symlink and hardlink entries with unsafe-looking targets does not validate
  that the resolved destination remains inside the extraction directory once the
  d…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H'
cwe:
  - CWE-59
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T17:42:00.023'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108119'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-108119'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2548611'
    label: secalert@redhat.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-108119.json
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-108119'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-108119'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
ingestedAt: '2026-10-09T18:07:39.417Z'
vendor: Red Hat
product: Red Hat Enterprise Linux 6
affected:
  - enterprise_linux 6
  - hardened_images
---

## Overview

A flaw was found in busybox. The tar applet's deferred link-creation handling for symlink and hardlink entries with unsafe-looking targets does not validate that the resolved destination remains inside the extraction directory once the deferred link is created. An attacker can craft a tar archive using a symlink target of exactly '..' combined with a deferred hardlink to create a new file outside the extraction directory, or reuse an extraction directory across two archives to replace an existing file outside it. If the archive is extracted with elevated privileges, this flaw can lead to privilege escalation or arbitrary code execution.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat Hardened Images · no fix planned: Red Hat Enterprise Linux 6, Red Hat Hardened Images · updated 2026-10-09 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-108119.json)