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CVE-2026-39320

CVE-2026-39320 · Signal K Server has an Unauthenticated Regular Expression Denial of Service (ReDoS) via WebSocket Subscription Paths

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Signal K Server is a server application that runs on a central hub in a boat. Versions prior to 2.25.0 are vulnerable to an unauthenticated Regular Expression Denial of Service (ReDoS) attack within the WebSocket subscription handling logic. By injecting unescaped regex metacharacters into the `context` parameter of a stream subscription, an attacker can force the server's Node.js event loop into a catastrophic backtracking loop when evaluating long string identifiers (like the server's self UUID). This results in a total Denial of Service (DoS) where the server CPU spikes to 100% and becomes completely unresponsive to further API or socket requests. Version 2.25.0 contains a fix.

CVSS 7.5 · Élevée · EPSS 0,4% · Correctif disponible

Publication
Mise à jour

Pile logicielle: node

Produits et versions concernés

  • signalk-server

    Versions du logiciel
    • < 2.25.0: Concernée

    Aucun correctif publié

  • signalk-server npm

    Plages de versions concernées
    • SEMVER: < 2.25.0

    Mettez à jour vers 2.25.0

Sources originales

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