Werkzeug safe_join() allows Windows special device names with compound extensions

🔗 CVE IDs covered (1)

🎯 Affected products6

• azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0
• azl3 python-werkzeug 3.0.3-2 on Azure Linux 3.0
• azl3 tensorflow 2.16.1-10 on Azure Linux 3.0
• azl3 tensorflow 2.16.1-9 on Azure Linux 3.0
• cbl2 python-tensorboard 2.11.0-3 on CBL Mariner 2.0
• cbl2 python-werkzeug 2.3.7-3 on CBL Mariner 2.0

🔗 References (1)

• advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21860