Apache Polaris has an Improper Input Validation Issue
Apache Polaris accepts literal * characters in namespace and table names. When it later builds temporary S3 access policies for delegated table access, those same characters appear to be reused unescaped in S3 IAM resource patterns and s3:prefix conditions. In S3 IAM policy matching, * is treated as a wildcard rather than as ordinary text. That means temporary credentials issued for one crafted table can match the storage path of …