CVE-2026-6903: Zurich Instruments LabOne · Path Traversal
Affects Zurich Instruments LabOneSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 26.01.3.9 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 26.01.3.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Zurich Instruments LabOne to 26.01.3.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Zurich InstrumentsLabOne | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, users should disable the LabOne Web Server component if not required, as installations using only LabOne APIs without the Web Server are not vulnerable. Additionally, restrict network access to the LabOne Web Server to trusted users and networks to reduce exposure.
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.