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.
CVSS Details
- CVSS 3.0 Base Score: 7.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | No solution exists | May 15, 2025 | May 15, 2025 |
| Freebsd | — | Upgrade py37-ScrapyUpgrade py38-ScrapyUpgrade py39-ScrapyUpgrade py311-ScrapyUpgrade py310-Scrapy | Sep 1, 2023 | Aug 31, 2023 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Sep 5, 2017 |
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