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    CVE-2026-113658

    ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the unauthenticated Rich Text CSV conversion route writes a multipart upload to the system temporary directory before checking its extension and does not remove the staged file when that validation rejects it. Repeated large rejected uploads, using the normal public CSRF cookie, can persistently consume temporary-disk capacity and may disrupt ApostropheCMS and other services that depend on the same partition. This issue is fixed in version 4.33.0.

    Published:Oct 20, 2026
    Last Modified:Oct 23, 2026
    EPS:Oct 20, 2026
    EPSS Score:0.00538
    CVSS Score:7.5

    Affected Products

    Vendor
    Apostrophecms
    Product
    Apostrophecms

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-113667 (CVSS 5.3) — ApostropheCMS is an open-source Node.js content management system. Prior to 1.5.5 of the Form add-on, 1.2.1 of…
    CVE-2026-113668 (CVSS 5.3) — ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the REST route GET /api/v1…
    CVE-2026-113666 (CVSS 7.1) — ApostropheCMS is an open-source Node.js content management system. Prior to 1.1.0 of db-connect and 4.33.0 of …
    CVE-2026-113665 (CVSS 3.7) — ApostropheCMS is an open-source Node.js content management system. Prior to 4.33.0, the notification module ex…
    CVE-2026-113664 (CVSS 5.3) — ApostropheCMS is an open-source Node.js content management system. Prior to 3.7.0 of the import-export module,…

    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