CVE-2024-3572: XML External Entity (XXE) Vulnerability in scrapy/scrapy

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-04-16 · updated 2026-06-17
Weakness: CWE-409

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.

Affected products

scrapy/scrapy: before 2.11.1 — fixed in 2.11.1

How to fix

Upgrade to a fixed version: scrapy/scrapy 2.11.1. Check the vendor advisory for mitigations.

References

https://github.com/scrapy/scrapy/commit/809bfac4890f75fc73607318a04d2ccba71b3d9f
https://huntr.com/bounties/c4a0fac9-0c5a-4718-9ee4-2d06d58adabb
https://github.com/scrapy/scrapy/commit/809bfac4890f75fc73607318a04d2ccba71b3d9f
https://huntr.com/bounties/c4a0fac9-0c5a-4718-9ee4-2d06d58adabb

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