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NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
🚨High - Zod Array Validation Memory Exhaustion DoS (CVE-2023-54404) Zod’s $ZodArray handleArrayResult parsing logic accumulates issues for every failing element when validating arrays without a max length constraint. An attacker can submit an extremely large array to trigger unbounded issue collection and exhaust memory, crashing the process (OOM). Arrays with explicit length/max constraints are not impacted. 👉Affected: zod <= 4.6.5