Untrusted data fed into `Data.init(base32Encoded:)` can result in exposing server memory and/or crash

Impact

A bug in the Data.init(base32Encoded:) function opens up the potential for exposing server memory and/or crashing the server (Denial of Service) for applications where untrusted data can end up in said function. Vapor does not currently use this function itself so this only impact applications that use the impacted function directly or through other dependencies.

Patches

This issue has been patched in 4.47.2.

Workarounds

Use an alternative to Vapor’s built-in Data.init(base32Encoded:).

For more information

If you have any questions or comments about this advisory:

• Open an issue in Vapor
• Ask in Discord