CVE-2026-6903

HighCVSS 7.5/10Last modified Oct 26, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-22 CWE-346

Affected software

Vendor	Product	Versions
Zurich Instruments	LabOne	< 26.01.3.9

References

Timeline

Published: Apr 23, 2026
Last modified: Oct 26, 2026
NVD status: Deferred

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