CVE-2017-14158: Scrapy

High severity, CVSS 7.5. EPSS: 2.6% chance of exploitation in the next 30 days.

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.

Affected products

• Scrapy Scrapy: version 1.4 only

Published 2017-09-05. Last modified 2026-06-17.