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    CVE-2026-35446

    LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. From 24.0.0 to before 27.0.3 and 28.0.1, an incorrect order of operations in the FilesDownloadHandler could result in an attacker escaping the intended download directories. This vulnerability is fixed in 27.0.3 and 28.0.1.

    Published:Apr 8, 2026
    Last Modified:Apr 21, 2026
    EPS:Apr 8, 2026
    EPSS Score:0.00034
    CVSS Score:7.7

    Affected Products

    Vendor
    Aces
    Product
    Loris
    Vendor
    Mcgill
    Product
    Loris

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-150 Collect Data from Common Resource Locations
    CAPEC-639 Probe System Files

    Related CVEs

    CVE-2026-39985 (CVSS 4.3) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-35403 (CVSS 6.5) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-35400 (CVSS 3.5) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-35169 (CVSS 8.7) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-35165 (CVSS 6.3) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-34985 (CVSS 6.3) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-34392 (CVSS 7.5) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-33350 (CVSS 7.5) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-26985 (CVSS 8.1) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…
    CVE-2026-26984 (CVSS 8.8) — LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- a…

    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