DRUPAL-CONTRIB-2026-313

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    DRUPAL-CONTRIB-2026-313

    Published: 4 Nov 2026Last Modified: 4 Nov 2026

    Summary:

    Details: Islandora does not sufficiently check file update access when processing media source and derivative uploads. A user with permission to update media or create derivatives can submit a crafted request to overwrite files they are not authorized to modify, including private files. The Islandora Text Extraction submodule also bypasses shared destination URI and file extension validation when attaching OCR output. This vulnerability is mitigated by the fact that an attacker must have permission to update media or to update a node and create media.

    References: https://www.drupal.org/sa-contrib-2026-313

    Affected packages

    Package

    Name: drupal/islandora

    Purl: pkg:composer/drupal/islandora?repository_url=https:%2F%2Fpackages.drupal.org%2F8

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.19.1

    Affected versions

    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
    DRUPAL-CONTRIB-2026-313 | CVE-DB