CVE-2026-6903CWE-22CWE-346

Path Traversal Vulnerability in LabOne User Interface

High · published April 23, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
23.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00313 · 23.0th percentile
Weaknesses
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-346 · Origin Validation Error
Published
2026-04-23T09:45Z
EPSS history
Timeline
  • 23 APR 09:45Z
    Path Traversal Vulnerability in LabOne User Interface
    cvelistv5