GitHub security advisory (AV26-1126)

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        <div><p><strong>Serial number: </strong>AV26-1126<br /><strong>Date: </strong>November 4, 2026</p>

As of November 3, 2026, GitHub is affected by vulnerabilities in the following product:

  • Enterprise Server
    • 3.19.0 Prior to 3.19.14
    • 3.20.0 Prior to 3.20.10
    • 3.21.0 Prior to 3.21.8
    • 3.22.0 Prior to 3.22.3

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: GitHub security advisory (AV26-1126) - Canadian Centre for Cyber Security