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.

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History

Fri, 02 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Thu, 01 Oct 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Zod
Zod zod
CPEs cpe:2.3:a:zod:zod:*:*:*:*:*:*:*:*
Vendors & Products Zod
Zod zod

Thu, 01 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
First Time appeared Colinhacks
Colinhacks zod
Vendors & Products Colinhacks
Colinhacks zod

Thu, 01 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Zod 4.6.5 Uncontrolled Resource Consumption via Array Validation
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-01T21:44:56.091Z

Reserved: 2026-10-01T17:10:41.641Z

Link: CVE-2023-54404

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-01T18:17:11.040

Modified: 2026-10-02T18:44:11.270

Link: CVE-2023-54404

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-01T17:11:13Z

Links: CVE-2023-54404 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T19:33:27Z

Weaknesses