---
id: CVE-2026-101894
title: The decompress package for Node.js extracts archives
summary: >-
  The decompress package for Node.js extracts archives. Prior to 10.2.2 and
  11.1.4, the default decompress(input, output) API relies on lexical
  containment checks that do not account for the kernel following a planted
  symlink chain. An att…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-22
  - CWE-59
vendor: XhmikosR
product: decompress
affected:
  - decompress < 10.2.2
  - 'decompress >= 11.0.0, < 11.1.4'
  - decompress <= 4.2.1
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T18:17:17.730'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101894'
references:
  - url: >-
      https://github.com/XhmikosR/decompress/commit/5f4b2f64abb31bbaf1fef8975b595fd7df2558d8
    label: security-advisories@github.com
  - url: >-
      https://github.com/XhmikosR/decompress/commit/f6c88c668216d6a12c6cecf4fe0b6c70bf77050a
    label: security-advisories@github.com
  - url: 'https://github.com/XhmikosR/decompress/releases/tag/v10.2.2'
    label: security-advisories@github.com
  - url: 'https://github.com/XhmikosR/decompress/releases/tag/v11.1.4'
    label: security-advisories@github.com
  - url: >-
      https://github.com/XhmikosR/decompress/security/advisories/GHSA-hrh2-vp3x-79xf
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-28T17:38:56.943847Z'
ingestedAt: '2026-09-28T17:16:27.806Z'
---

## Overview

The decompress package for Node.js extracts archives. Prior to 10.2.2 and 11.1.4, the default decompress(input, output) API relies on lexical containment checks that do not account for the kernel following a planted symlink chain. An attacker can supply a crafted archive containing chained symlink entries so that a later entry resolves outside the output directory. This allows files outside output to be read or written, and overwriting startup scripts or configuration can lead to remote code execution. The maintained @xhmikosr/decompress package is fixed in 10.2.2 and 11.1.4, but the separately affected unmaintained decompress package remains unpatched through 4.2.1. This vulnerability results from a bypass of the incomplete hardening for CVE-2026-53486. @xhmikosr/decompress is fixed in versions 10.2.2 and 11.1.4.

## Remediation

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