Canadian Cyber Centre flags vulnerabilities in GitHub Enterprise Server versions 3.19 to 3.22
VULNERABILITYCanadian Centre for Cyber Securityredteam/daily · 1 source
- Severity
- Medium
- Sources
- 1
What happened
Canadian Centre for Cyber Security advisory AV26-1126 (4 November 2026) reports vulnerabilities in GitHub Enterprise Server as of 3 November 2026. Affected versions are 3.19.0 before 3.19.14, 3.20.0 before 3.20.10, 3.21.0 before 3.21.8 and 3.22.0 before 3.22.3. The advisory gives no CVE identifiers, severity scores or technical details. Administrators should upgrade to the fixed versions for their branch using GitHub's release notes.
For security analysts · Written by AI from 1 source · Wrong?
What to do
- Check which GitHub Enterprise Server version you run and whether it is earlier than 3.19.14, 3.20.10, 3.21.8 or 3.22.3.
- Apply the update for your release branch as soon as it is available, using GitHub's Enterprise Server release notes.
- Review the linked GitHub Enterprise Server release notes for details of the fixes.
Written by AI from the sources, checked against them
Full story timeline · 1 update
Who reported · 1 outlet
Canadian Centre for Cyber Security
Who and what is in it
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