Spinnaker has uon-safe yaml deserialization, allowing RCE when using specific types

Description

### Impact There's an unsafe YAML processing vulnerability that bypasses safe deserialization. This impacts users when when performing: * CloudFormation deployments * CloudFoundry Baking The usage of a non-safe constructor use allows arbitrary loading of Java classes leading to RCE. ### Patches 2025.3.3, 2026.0.3 and 2025.4.4. ### Workarounds Disable the CloudFormation system and cloudfoundry baking operations. ### Resources Join Spinnaker on Slack for more information!

Affected Packages (2)