CVE-2026-120859

    Dashboard / Vulnerabilities / CVE-2026-120859

    CVE-2026-120859

    Published: 5 Nov 2026Last Modified: 7 Nov 2026

    Summary: PyMoDAQ before 5.3.10 Arbitrary Code Execution via Crafted HDF5, Dock Layout, and XML Settings Files

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120859.json, https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/4.4.13, https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/5.1.15, https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/5.2.14, https://github.com/PyMoDAQ/PyMoDAQ/releases/tag/5.3.10, https://github.com/PyMoDAQ/PyMoDAQ/security/advisories/GHSA-jw9g-5c9x-cf84, https://nvd.nist.gov/vuln/detail/CVE-2026-120859, https://www.vulncheck.com/advisories/pymodaq-before-5.3.10-arbitrary-code-execution-via-crafted-hdf5-dock-layout-and-xml-settings-files, https://github.com/PyMoDAQ/PyMoDAQ/commit/041e8a22b3dbe3c986ec0ea3c6b46a22f5efe374, https://github.com/PyMoDAQ/PyMoDAQ/commit/3bf9042a58f5d4870a2b45fe2c9423aafe6b9203, https://github.com/PyMoDAQ/PyMoDAQ/commit/6c7fff74d82624c640bd79513f5b4675ea6d88da, https://github.com/PyMoDAQ/PyMoDAQ/commit/ae0042513eb979c84da690825902658c625718d1, https://github.com/PyMoDAQ/PyMoDAQ, https://github.com/PyMoDAQ/PyMoDAQ/blob/5.3.9/packages/pymodaq_data/src/pymodaq_data/h5modules/backends.py#L477-L478

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -24e220c2b4bb1fa2b40bdeec37a062ae75c3e9ac

    Affected versions

    5.1.14
    5.1.13
    5.1.12
    5.1.11
    5.1.10
    5.1.9
    5.1.8
    5.1.7
    5.1.6
    5.1.5
    5.1.4
    5.1.3
    5.1.1
    5.1.0
    5.1.0.alpha

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-120859 | CVE-DB