Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/automatisch/automatisch
- https://github.com/automatisch/automatisch/blob/v0.15.0/packages/backend/src/con
- https://github.com/automatisch/automatisch/issues/2713
- https://www.vulncheck.com/advisories/automatisch-through-0.15.0-user-enumeration
FAQ
What is CVE-2026-81033?
CVE-2026-81033 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 lo...
How severe is CVE-2026-81033?
CVE-2026-81033 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-81033?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.