| Package | Affected versions | Patched versions |
|---|---|---|
| web3-core-subscriptions | < 1.10.4 | 1.10.4 |
| web3-core-subscriptions | ≤ 2.0.0-alpha.1 |
The web3-core-subscriptions is a package designed to manages web3 subscriptions. A Prototype Pollution vulnerability in the attachToObject function of web3-core-subscriptions 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.
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