High
CVSS 7.3 Credential Exposure HackerOne
Disclosure
Segment Analytics Write Key Exposed — Event Injection Verified
Segment Write Key (2hfUaoiBcaEUEyqjaYb5biu56ARGjcL3) Hardcoded in Client JS — Arbitrary Event/User Injection into [vendor]Analytics Pipeline
- Target
- LATAM Crypto Platform
- Category
- Credential Exposure
- Channel
- HackerOne
- 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 HackerOne 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.