Interpretation Conflict Affecting adm-zip package, versions *


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-JS-ADMZIP-21707815
  • published25 Oct 2026
  • disclosed25 Oct 2026
  • creditArjun Jain

Introduced: 25 Oct 2026

NewCVE-2026-116137  (opens in a new tab)
CWE-436  (opens in a new tab)

How to fix?

There is no fixed version for adm-zip.

Overview

adm-zip is a JavaScript implementation for zip data compression for NodeJS.

Affected versions of this package are vulnerable to Interpretation Conflict via canonically equivalent ZIP entry names (e.g., ./hello.txt and hello.txt), which causes readEntries() to treat them as distinct entries while extractAllTo() resolves them to the same filesystem path. An attacker can craft a ZIP archive where getEntry() or readAsText() validates benign content from one entry while extractAllTo() subsequently writes malicious content from a duplicate entry to the same path, bypassing integrity checks.

CVSS Base Scores

version 4.0
version 3.1