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    CVE-2026-100846

    MONAI before 1.5.2 contains a deserialization of untrusted data vulnerability in the algo_from_pickle function in monai/auto3dseg/utils.py. The function reads a .pkl file and passes its contents to pickle.loads without validating the data source or content. If an application invokes algo_from_pickle on an attacker-supplied pickle file, an object defining __reduce__ is executed during deserialization, resulting in arbitrary code execution in the context of the application.

    Published:Sep 27, 2026
    Last Modified:Oct 8, 2026
    EPS:Sep 27, 2026
    EPSS Score:0.00292
    CVSS Score:7.6

    Affected Products

    Vendor
    Project-monai
    Product
    Monai

    Exploits

    https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-89gg-p5r5-q6r4

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

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    CVE-2026-119578 (CVSS 8.5) — MONAI from 1.6.0 before 1.6.1 contains a remote code execution vulnerability in Auto3DSeg algo_from_json() tha…
    CVE-2026-118684 (CVSS 8.2) — MONAI before 1.6.1 contains an insufficient integrity verification vulnerability in check_hash() that silently…
    CVE-2026-118683 (CVSS 8.6) — MONAI from 1.2.0 before 1.6.1 contains a remote code execution vulnerability in ConfigWorkflow.__init__, which…
    CVE-2026-109361 (CVSS 7) — MONAI 1.2.0 before 1.6.1 contains an insecure deserialization vulnerability in nnUNetV2Runner that unpickles t…
    CVE-2026-109360 (CVSS 7.7) — MONAI 0.4.0 before 1.6.1 contains a remote code execution vulnerability that allows on-path attackers to execu…
    CVE-2026-100845 (CVSS 8.5) — MONAI before 1.6.0 contains an unsafe deserialization vulnerability in the NumpyReader class that unconditiona…
    CVE-2026-100844 (CVSS 8.6) — MONAI before 1.6.0 is vulnerable to OS command injection in the nnUNetV2Runner component (monai.apps.nnunet.nn…
    CVE-2026-100843 (CVSS 8.5) — MONAI versions before 1.6.0 contain a remote code execution vulnerability in the algo_from_pickle() function d…
    CVE-2026-100842 (CVSS 7.3) — MONAI through 1.6.0 contains an eval injection vulnerability in _get_fake_spatial_shape() in monai/bundle/scri…

    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