CVE-2026-61503 | Rejetto HFS 3.0.0 through 3.2.0 returns observably different… | CVSS 5.3 MEDIUM

Description

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.

Metadata

CVE ID: CVE-2026-61503
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-07-10 15:43 UTC
Published: 2026-07-13 17:23 UTC
Last updated: 2026-07-13 17:23 UTC
Primary CWE: CWE-204
Observable Response Discrepancy
Vendor / Product: rejetto / hfs
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products (1)

Vendor	Product	Platform	Versions
rejetto	hfs	—	3.0.0 < 3.2.1

Weakness (CWE)

CWE	Source	Description
CWE-204	cna	Observable Response Discrepancy

CVSS scores (2)

Score	Severity	Version	Source	Vector
6.9	MEDIUM	4.0	cna	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	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References (2)