CVE-2026-7584 Arbitrary Code Execution via Unsafe Deserialization in LabOne Q
Attackers can execute arbitrary code by tricking users into loading malicious experiment files in the LabOne Q Python library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-7584?
CVE-2026-7584 is a high-severity unsafe deserialization vulnerability in Zurich Instruments LabOne Q, published on 1 May 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The LabOne Q serialization framework uses a class-loading mechanism (import_cls) to dynamically import and instantiate Python classes during deserialization. Prior to the fix, this mechanism accepted arbitrary fully-qualified class names from the serialized data without any validation of the target class or restriction on which modules could be imported. An attacker can craft a serialized experiment file that causes the deserialization engine to import and instantiate arbitrary Python classes with attacker-controlled constructor arguments, resulting in arbitrary code execution in the context of the user running the Python process. Exploitation requires the victim to load a malicious file using LabOne Q's deserialization functions, for example a compromised experiment file shared for collaboration or support purposes.
Weakness: CWE-502
Which versions are affected by CVE-2026-7584?
It affects 1 product.
Products include Zhinst Labone Q.
How do I fix CVE-2026-7584?
No fix has been published for CVE-2026-7584 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-7584 being exploited?
There is no known exploitation of CVE-2026-7584 in the wild and no public exploit code.
Sources
Also known as GHSA-h9hw-pgfp-h6xc.