Critical
CVSS 9.3 Firebase Misconfig Responsible Disclosure
Disclosure
Firebase Realtime Database PUBLIC READ Access [CRITICAL]
Finding 1: Firebase Realtime Database PUBLIC READ Access [CRITICAL] - URL: `https://[target]/.json` - Impact: Full database readable without authentication (562KB) - 80 production bank configurations (codes, logos, names)
- Target
- Crypto Fintech Mass Scan
- Category
- Firebase Misconfig
- Channel
- Responsible Disclosure
- Disclosed
- 2026-03
Redaction note
Vendor identity withheld.
This finding is documented here as part of MemCyber’s public disclosure record. The vendor has been anonymized to a sector and region descriptor. Full technical detail — including root cause, reproducible proof-of-concept, remediation guidance, and vendor attribution where granted — is available to qualified prospects under NDA.
Coordinated disclosure
How we handled it.
- Reported to the vendor via Responsible Disclosure with a reproducible proof-of-concept.
- Triage + remediation window coordinated with the vendor security team.
- Fix verified before any public reference.
- This record published only after the embargo period closed.