Broken Access Control vulnerability in Active Job

There is a vulnerability in Active Job. This vulnerability has been
assigned the CVE identifier CVE-2018-16476.

Versions Affected: >= 4.2.0
Not affected: < 4.2.0
Fixed Versions: 4.2.11, 5.0.7.1, 5.1.6.1, 5.2.1.1

Impact

Carefully crafted user input can cause Active Job to deserialize it using GlobalId
and allow an attacker to have access to information that they should not have.

Vulnerable code will look something like this:

MyJob.perform_later(user_input)

All users running an affected release should either upgrade or use one of the
workarounds immediately.