CVE-2026-61503

Rejetto HFS 3.0.0 through 3.2.0 returns observably different responses from its login endpoint depending on whether the submitted username exists. A remote unauthenticated attacker can use this to confirm valid account names, including the default admin account, facilitating password-guessing and session-forgery attacks.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/rejetto/hfs/releases/tag/v3.2.1
https://www.vulncheck.com/advisories/rejetto-hfs-username-enumeration-via-login-response-differences

Configurations

No configuration.

History

13 Jul 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-13 18:16

Updated : 2026-07-15 19:18

NVD link : CVE-2026-61503

Mitre link : CVE-2026-61503

CVE.ORG link : CVE-2026-61503

JSON object : View

Products Affected

No product.

CWE

CWE-204

Observable Response Discrepancy

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