Critical
CVSS 9.8 JWT Issues Responsible Disclosure
Disclosure
Bcrypt Password Hash Leaked in Registration Response AND JWT Token
POST /api/auth/register endpointi basarili kayit sonrasinda kullanicinin bcrypt password hash'ini hem JWT token payload'inda hem de response body'sinde dondurur. Ayrica GET /api/auth/me endpointi de authenticated kullanicinin password hash'ini response'da dondurur. Bu bir fintech platformunda felaket seviyesinde bir guvenlik acigi
- Target
- African Remittance Platform
- Category
- JWT Issues
- 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.