Duplicate Advisory: Scrapy decompression bomb vulnerability
Date: 2024-04
Affected: pip/scrapy
Attack vector: dos
Category: vulnerability-disclosure
Severity: High
CWE: CWE-409
CVSS: 7.5 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-7j7m-v7m3-jqm7. This link is maintained to preserve external references. ## Original Description The scrapy/scrapy project is vulnerable to XML External Entity (XXE) attacks due to the use of lxml.etree.fromstring for parsing untrusted XML data without proper validation. This vulnerability allows attackers to perform denial of service attacks, access local files, generate network connections, or circumvent firewalls by submitting specially crafted XML data.


Mitigations:

Architectural layers (MAESTRO):