CVE-2026-55200 was reported here:
https://ubuntu.com/security/CVE-2026-55200
This article covers if TKGi deployed VMs are affected by this CVE.
From the security advisory, this vulnerability only affects these versions:
26.04 LTS resolute
25.10 questing
https://ubuntu.com/security/CVE-2026-55200
VMs deployed with jammy stemcell are not affected. So TKGi would not be vulnerable.