CVE-2026-7584 (GCVE-0-2026-7584)

Vulnerability from cvelistv5 – Published: 2026-05-01 07:21 – Updated: 2026-05-01 13:26
VLAI
Title
Arbitrary Code Execution via Unsafe Deserialization in LabOne Q
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.4 (High)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 13:26 UTC
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
NCSC.ch CNA under the mitre root
CNA scorecard B 80/100 over 76 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Zurich Instruments LabOne Q Affected: 2.41.0 , < 26.1.2 (python)
Affected: 26.4.0b1 , ≤ 26.4.0b5 (python)
guessed Create a notification for this product.
Show details on NVD website
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            }
          ],
          "source": {
            "discovery": "INTERNAL"
          },
          "title": "Arbitrary Code Execution via Unsafe Deserialization in LabOne Q",
          "workarounds": [
            {
              "lang": "en",
              "supportingMedia": [
                {
                  "base64": false,
                  "type": "text/html",
                  "value": "\u003cp\u003eDo not load untrusted experiment files: only deserialize experiment files (JSON, YAML) that originate from a trusted source. Treat serialized experiment files with the same caution as executable scripts.\u003c/p\u003e\u003cp\u003eValidate file provenance: when receiving experiment files from external parties (e.g. for support or collaboration), verify their origin before loading them.\u003c/p\u003e\u003cp\u003eAudit serialized files: before loading, inspect serialized experiment files and verify that only trusted classes are listed as deserializers.\u003c/p\u003e"
                }
              ],
              "value": "Do not load untrusted experiment files: only deserialize experiment files (JSON, YAML) that originate from a trusted source. Treat serialized experiment files with the same caution as executable scripts.\n\n\n\nValidate file provenance: when receiving experiment files from external parties (e.g. for support or collaboration), verify their origin before loading them.\n\n\n\nAudit serialized files: before loading, inspect serialized experiment files and verify that only trusted classes are listed as deserializers."
            }
          ],
          "x_generator": {
            "engine": "Vulnogram 1.0.2"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
        "assignerShortName": "NCSC.ch",
        "cveId": "CVE-2026-7584",
        "datePublished": "2026-05-01T07:21:18.781Z",
        "dateReserved": "2026-05-01T07:14:23.592Z",
        "dateUpdated": "2026-05-01T13:26:59.075Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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