CVE-2023-54404

CVE-2023-54404 · Zod can exhaust memory while validating oversized constrained collections

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Zod schema-validation library through 4.6.5 contains an uncontrolled resource consumption vulnerability that allows attackers to exhaust memory by submitting a large array to an application using an array schema without a length constraint. Attackers can exploit the handleArrayResult parse logic in $ZodArray, which accumulates every validation issue for each failing element with no cap or early termination, causing the process to allocate excessive issue objects and crash due to out-of-memory conditions.

CVSS 8.2 · High · Fix available

Published

2026-10-01T18:32:46Z

Updated

2026-10-23T18:30:09.376405885Z

Stack: node

Check your server →