GitHub security advisory (AV26-956)
Brief
Serial Number: AV26-956
Date: September 23, 2026
As of September 22, 2026, GitHub is affected by vulnerabilities in the following product:
- Enterprise Server
- 3.17.0 Prior to 3.17.21
- 3.18.0 Prior to 3.18.15
- 3.19.0 Prior to 3.19.12
- 3.20.0 Prior to 3.20.8
- 3.21.0 Prior to 3.21.6
- 3.22.0 Prior to 3.22.1
The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available.