Bug 2567947 (CVE-2026-120859)

Summary: CVE-2026-120859 pymodaq: pymodaq_data: pymodaq_gui: pymodaq_utils: PyMoDAQ: Arbitrary code execution via crafted files
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in PyMoDAQ. An attacker can achieve arbitrary code execution by convincing a user to open a maliciously crafted file, such as a data, dock layout, or XML configuration file. This issue occurs because the application unsafely deserializes untrusted objects and evaluates embedded code during file parsing. Successful exploitation allows an attacker to run arbitrary commands with the privileges of the victim user.
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Description OSIDB Bzimport 2026-11-05 22:38:37 UTC 
PyMoDAQ before 4.4.13, and pymodaq_data, pymodaq_gui, and pymodaq_utils before 5.1.15, 5.2.x before 5.2.14, and 5.3.x before 5.3.10, contain deserialization of untrusted data and eval injection vulnerabilities that allow attackers to execute arbitrary code by supplying crafted files that a user opens. Attackers can store pickled objects in HDF5 string nodes that StringARRAY.array_to_string() passes to pickle.loads() when the node is browsed or read, place Python expressions in HDF5 attributes that JsonConverter.json2object() evaluates, supply a .dock file that load_layout_state() unpickles from the Dashboard Load layout action, or embed Python expressions in XML settings files that elt_to_dict() and set_txt_from_elt() evaluate.