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Advisories

Hedera Guardian Authentication Bypass Information Disclosure

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severity
medium
date
Affecting

  • Guardian <= 3.5.1

  • An affected version range remains undefined

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Credit
Christ Bouchuen
Description
Hedera Guardian through 3.5.1 contains an authentication bypass vulnerability in the GET /api/v1/demo/registered-users endpoint that allows unauthenticated attackers to retrieve sensitive user information. Attackers can access the endpoint without providing authentication credentials to obtain usernames, Hedera DIDs, parent registry DIDs, system roles, and policy role assignments for all registered users in the system.

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