CVE-2026-81033: Automatisch through 0.15.0 User Enumeration via Forgot-Password Response Discrepancy
Automatisch reveals whether an address is registered through the response to its forgot-password request. The controller at packages/backend/src/controllers/internal/api/v1/users/forgot-password.js looks the address up and chains a not-found throw onto the query, so an address with no account raises an error that the global handler renders as a not-found status, while a registered address proceeds to send the reset message and returns no-content. The route is mounted without authentication. Submitting candidate addresses and comparing the two status codes therefore establishes which addresses hold accounts, with no credential and no rate limiting in the path.
Affected Software
Event History
Frequently Asked Questions
Which component and versions should be reviewed?
The affected component is the Automatisch backend NPM package. The issue is identified as affecting Automatisch through version 0.15.0.
Does exploiting the endpoint require an account or other prior access?
No. The forgot-password route is mounted without authentication, so an unauthenticated remote requester can submit candidate email addresses.
Is there a built-in rate limit on the affected request path?
No rate limiting is present in the affected path. This allows repeated requests to compare outcomes for multiple candidate addresses.