What’s Vulnerable › Vulnerabilities
CVE-2026-7584: Arbitrary Code Execution via Unsafe Deserialization in LabOne Q
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-01 · updated 2026-10-26
- Weakness: CWE-502
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.
Affected products
- Zurich Instruments LabOne Q: from 2.41.0 before 26.1.2; 26.4.0-beta1, 26.4.0-beta2, 26.4.0-beta3, 26.4.0-beta4, 26.4.0-beta5 — fixed in 26.1.2
How to fix
Upgrade to a fixed version: Zurich Instruments LabOne Q 26.1.2. Check the vendor advisory for mitigations.
References
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