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CVE-2026-45736 #5500

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Description

@mateBe95

Description: ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close() implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1.

Please update ws to 8.20.1

Activity

  1. added
    to triageWaiting to be triaged by a member of the team
    on May 19, 2026
  2. NormandoHall commented on May 19, 2026

    @NormandoHall
  3. AviVahl commented on May 19, 2026

    @AviVahl
    Contributor

    #5439
    No response from author, though...

  4. NormandoHall commented on May 19, 2026

    @NormandoHall

    #5439 No response from author, though...

    Meanwhile add to package.json

      "overrides": {
        "ws": "8.20.1"
      }

    Then npm i

  5. chadlwilson commented on May 20, 2026

    @chadlwilson

    This is merged/fixed via #5439 now; pending release.

  6. darrachequesne commented on May 20, 2026

    @darrachequesne
    Member
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