CVE-2026-6903

HIGH 7.5

Path Traversal Vulnerability in LabOne User Interface

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

The LabOne Web Server, backing the LabOne User Interface, contains insufficient input validation in its file access functionality. An unauthenticated attacker could exploit this vulnerability to read arbitrary files on the host system that are accessible to the operating system user running the LabOne software. Additionally, the Web Server does not sufficiently restrict cross-origin requests, which could allow a remote attacker to trigger file access from a victim's browser by directing the victim to a malicious website. The vulnerability is only exploitable when the LabOne Web Server is running. Installations using only the LabOne APIs without starting the Web Server are not exposed.

CWE	CWE-22 CWE-346
Vendor	zurich instruments
Product	labone
Published	Apr 23, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Zurich Instruments / LabOne

0 < 26.01.3.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

zhinst.com: https://www.zhinst.com/support/security/2026/zi-sa-2026-001/ zhinst.com: https://www.zhinst.com/support/download-center/