CVE-2023-54404
Zod 4.6.5 Uncontrolled Resource Consumption via Array Validation
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-770 |
| Vendor | colinhacks |
| Product | zod |
| Published | Oct 1, 2026 |
| Last Updated | Oct 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
colinhacks / zod
0 ≤ 4.6.5
References
Credits
Axel Habermaier (axel-habermaier) Alessio Della Libera