The AWS Encryption SDK for C is a client-side encryption library designed to make it easy for everyone to encrypt and decrypt data using industry standards and best practices. It uses a data format compatible with the AWS Encryption SDKs in other languages. For more information on the AWS Encryption SDKs in all languages, see the Developer Guide. A vulnerability was found in AWS S3 Crypto SDK for GoLang and classified as problematic. Affected by this issue is an unknown function of the component AES-GCM. The manipulation with an unknown input leads to a weak encryption vulnerability (Key). Using CWE to declare the problem leads to CWE-327. Impacted is confidentiality.