Roundcube security advisory (AV26-1075)

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        <div><p><strong>Serial Number:</strong> AV26-1075<br /><strong>Date:</strong> October 22, 2026</p>

As of October 19, 2026, Roundcube is affected by vulnerabilities in the following product:

  • Roundcube Webmail
    • Prior to 1.6.20
    • Prior to 1.7.5

The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.

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Article Link: Roundcube security advisory (AV26-1075) - Canadian Centre for Cyber Security