Affects Version/s: None
Fix Version/s: 18.104.22.168
AWS has the option to use encryption on S3 data with their Key Management Service (account specific keys). If a file is encrypted on AWS S3 with a KMS key, using cffile to to get a encrypted s3 file breaks because Signature v4 is required.
Requests specifying Server Side Encryption with AWS KMS managed keys require AWS Signature Version 4.
The old style of signing request will be deprecated soon and will break S3 support in Lucee.