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@socket.io/cluster-engine vulnerabilities

Vulnerabilities published for @socket.io/cluster-engine in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerability: 1

  1. CVE-2026-102600

    High · CVSS 7.5EPSS 0.38%Fix available

    Socket.IO: Prototype Pollution via Unsafe Client Session Lookup

    Socket.IO enables bidirectional and low-latency communication for every platform. Prior to 0.1.1, @socket.io/cluster-engine uses inherited object properties when looking up attacker-controlled session IDs in clustered deployments. Special property names such as __proto__ or constructor can resolve through the object prototype chain instead of identifying an actual connected client, causing the Node.js process to crash and resulting in denial of service. Applications that do not use @socket.io/cluster-engine are not affected. This issue is fixed in version 0.1.1.

    @socket.io/cluster-engineNode.js
    • Update to 0.1.1
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗Source advisory 3 ↗

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