---
id: CVE-2026-107709
title: >-
  A path traversal vulnerability exists in Bower decompress-zip through version
  0.3.3
summary: >-
  A path traversal vulnerability exists in Bower decompress-zip through version
  0.3.3. The vulnerability located in `lib/decompress-zip.js` improperly
  validates archive entry paths during ZIP extraction. A crafted ZIP archive
  containing en…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
vendor: Bower Decompress-Zip
product: decompress-zip
affected:
  - decompress-zip <= 0.3.3
published: '2026-10-08'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:17:52.420'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107709'
references:
  - url: 'https://github.com/bower/decompress-zip'
    label: cret@cert.org
  - url: >-
      https://moizxsec.github.io/writeups/decompress-zip-zip-slip-sibling-prefix-bypass/
    label: cret@cert.org
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-08T17:56:11.717Z'
---

## Overview

A path traversal vulnerability exists in Bower decompress-zip through version 0.3.3. The vulnerability located in `lib/decompress-zip.js` improperly validates archive entry paths during ZIP extraction. A crafted ZIP archive containing entries that resolve to prefix-sibling directories can cause files to be written outside the intended extraction directory. Successful exploitation may allow arbitrary file overwrite, application compromise, or remote code execution depending on the target environment and writable sibling paths.

## Remediation

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