Inefficient Algorithmic Complexity Affecting nodejs package, versions [0,]


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-CONAN-NODEJS-15764695
  • published26 Mar 2026
  • disclosed26 Mar 2026
  • creditsharp_edged

Introduced: 26 Mar 2026

NewCVE-2026-21717  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Inefficient Algorithmic Complexity in the V8 JavaScript engine due to the string hashing mechanism predictably hashing integer-like strings directly to their numeric values. An attacker can exploit this by sending maliciously crafted payloads containing many colliding strings to endpoints that process user input (most commonly via JSON.parse()). This causes massive hash collisions within V8's internal string table, drastically degrading the performance of the Node.js process and resulting in a Denial of Service (DoS).

CVSS Base Scores

version 4.0
version 3.1