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    CVE-2026-91940

    crawl4ai before 0.9.3 contains an arbitrary file write vulnerability in PDFContentScrapingStrategy where the _filter_untrusted_fields function fails to validate untrusted configuration fields. Attackers can submit crafted config bodies with malicious image_save_dir paths to write attacker-controlled bytes into any directory accessible to the service account.

    Published:Sep 15, 2026
    Last Modified:Sep 15, 2026
    EPS:Sep 15, 2026
    EPSS Score:
    CVSS Score:7.5

    Affected Products

    Vendor
    Unclecode
    Product
    Crawl4ai

    Exploits

    https://github.com/BiiTts/CVE-2026-91940-crawl4ai-Arbitrary-File-Write

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    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