Inefficient Algorithmic Complexity Affecting nodejs package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Mar 2026
- disclosed26 Mar 2026
- creditsharp_edged
Introduced: 26 Mar 2026
CVE-2026-21717 (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).