CVE-2024-3572: Scrapy decompression bomb vulnerability

April 16, 2024

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.

References

github.com/advisories/GHSA-rmqv-7v3j-mr7p
github.com/scrapy/scrapy
github.com/scrapy/scrapy/commit/809bfac4890f75fc73607318a04d2ccba71b3d9f
huntr.com/bounties/c4a0fac9-0c5a-4718-9ee4-2d06d58adabb
nvd.nist.gov/vuln/detail/CVE-2024-3572

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