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VULNERABILITIES

CVE-2026-45248 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/hashgraph/guardian/pull/6076 [email protected]Issue TrackingPatch
https://www.vulncheck.com/advisories/hedera-guardian-authentication-bypass-information-disclosure [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-306Missing Authentication for Critical Function[email protected]

Affected Products

ProductVersions
hedera guardian
<= 3.5.1

CPE

  • cpe:2.3:a:hedera:guardian:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-45248
NVD Published Date:
May 14, 2026
NVD Last Modified:
Jul 14, 2026
Source:
[email protected]
CVE-2026-45248 Details - Not Deferred