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RubyGems package

mqtt

Open actionable advisories and recorded vendor fixes. This public package view has no inventory attached and cannot establish whether your deployment is affected. A vendor fix never resolves your finding; verify your installed version and the source guidance.

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1 actionable advisory, newest first. Withdrawn advisories and news are excluded. Coverage is partial.

  1. High, CVSS 7.4RubyGemsPublished

    MQTT does not validate hostnames

    CVE-2025-12790 · GHSA-9c5q-w6gr-fxcq

    Affected
    • RubyGems mqtt < 0.7.0
    Fixed in
    0.7.0· Vendor fix available
    Issue
    A flaw was found in Rubygem MQTT. By default, the package used to not have hostname validation, resulting in possible Man-in-the-Middle (MITM) attack.

    Recommended action: Upgrade to 0.7.0 or later, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.

    Sources:github.comSource checked Evidence →