CVE-2026-45248 (GCVE-0-2026-45248)

Vulnerability from cvelistv5 – Published: 2026-05-14 21:36 – Updated: 2026-07-14 21:32 X_Open Source
VLAI
Title
Hedera Guardian Authentication Bypass Information Disclosure
Summary
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.
Severity
6.9 (Medium)
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
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-16 01:07 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7131 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
hashgraph guardian Affected: 0 , ≤ 3.5.1 (semver)
    cpe:2.3:a:hedera:guardian:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-05-14 00:00
Credits
Christ Bouchuen
Show details on NVD website
To clipboard 

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