`generateVerifyAndChangeEmailLink` only works for accounts with existing email
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 35/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- firebase, node.js, typescript
- Domain
- authentication, backend
Research direction
Start by tracing generateVerifyAndChangeEmailLink in the Firebase Admin Node.js authentication implementation and its existing tests, using the reported call with a user lacking an email as the reproduction case. Done means the link can be generated for such an account while email enumeration protection remains enabled, with coverage for the reported scenario.
Written by the indexing model from the issue text.
Description
- Operating System version: Firebase Cloud
- Firebase SDK version: 12.6.0
- Firebase Product: auth
- Node.js version: 20
- NPM version: 10
Steps to reproduce:
In our app, we allow social login with Facebook (and more, but irrelevant). When authenticating with Facebook, the user can decide to not provide his email address. Since our whole application builds arounds mails, we ask them to provide one.
We activated email enumeration protection recently!
Since we can no longer set that mail in the frontend code and we want styled/custom mails, we would like to use generateVerifyAndChangeEmailLink in the admin library. But it seems impossible to call that function, if we don't provide an existing email.
This is, how the user looks in Firebase Console
Relevant Code:
// I tried different things for the existing mail, but all failed
await getAuth().generateVerifyAndChangeEmailLink('-', email, actionCodeSettings);
- Dominant language
- TypeScript
- Stars
- 1.7k
- Forks
- 419
- Avg merge
- 4d 20h
- Merged PRs (30d)
- 16
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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