shuber/attr_encrypted — Issue #32: attr_encrypted is completely unsafe
Author: danpal
Created: 2011-12-19 06:11:02+00:00
State: open

You are using cbc mode with the same :iv over an over.
see this discussion:
https://github.com/danpal/encryptor/commit/c1b7e39538cb841a809053a7936b610e92a4bde0

This gem is quite downloaded(36,520 total downloads). It should be fixed, and users should at least be warned.