PT-2026-103950 · Colinhacks · Zod

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CVE-2023-54404

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Published

2026-10-01

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Updated

2026-10-01

CVSS v3.1

7.5

High

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.

Fix

Allocation of Resources Without Limits

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Weakness Enumeration

Related Identifiers

CVE-2023-54404

Affected Products

Zod