PYSEC-2017-83

    Dashboard / Vulnerabilities / PYSEC-2017-83

    PYSEC-2017-83

    Published: 5 Sept 2017Last Modified: 9 Oct 2025

    Summary:

    Details: Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.

    References: https://github.com/scrapy/scrapy/issues/482, http://blog.csdn.net/wangtua/article/details/75228728, https://github.com/advisories/GHSA-h7wm-ph43-c39p

    Affected packages

    Package

    Name: scrapy

    Purl: pkg:pypi/scrapy

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0.7
    Fixed -None

    Affected versions

    0.10.4.2364

    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