CVE-2025-57329 web3-core-method is vulnerable to prototype pollution

High 7.5 Published Updated

Attackers can cause denial of service via prototype pollution in the web3-core-method library by injecting properties into Object.prototype.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-57329?

CVE-2025-57329 is a high-severity vulnerability in n/a, published on 24 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

web3-core-method is a package designed to creates the methods on the web3 modules. A Prototype Pollution vulnerability in the attachToObject function of web3-core-method version 1.10.4 and before allows attackers to inject properties on Object.prototype via supplying a crafted payload, causing denial of service (DoS) as the minimum consequence.

Weakness: CWE-1321

Which versions are affected by CVE-2025-57329?

2 open source packages ship an affected version, including web3-core-method. It affects 1 product.

PackageAffectedFixed in
web3-core-method npmAll versions to 1.10.3None
web3-core-method npmAll versions to 1.10.3None

Products include Web3js Web3-Core-Method.

How do I fix CVE-2025-57329?

No fix has been published for CVE-2025-57329 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-57329 being exploited?

There is no known exploitation of CVE-2025-57329 in the wild and no public exploit code.

Sources

Also known as GHSA-2j4c-9qqq-896r.

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