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CVE-2024-1892

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Date: February 27, 2024

A Regular Expression Denial of Service (ReDoS) vulnerability exists in the XMLFeedSpider class of the scrapy/scrapy project, specifically in the parsing of XML content. By crafting malicious XML content that exploits inefficient regular expression complexity used in the parsing process, an attacker can cause a denial-of-service (DoS) condition. This vulnerability allows for the system to hang and consume significant resources, potentially rendering services that utilize Scrapy for XML processing unresponsive.

Language: Python

Severity Score

Related Resources (10)

https://docs.scrapy.org/en/latest/news.html#scrapy-2-11-1-2024-02-14
https://github.com/pypa/advisory-database/tree/main/vulns/scrapy/PYSEC-2024-162.yaml
https://github.com/scrapy/scrapy/security/advisories/GHSA-cc65-xxvf-f7r9
https://github.com/scrapy/scrapy/commit/479619b340f197a8f24c5db45bc068fb8755f2c5
https://huntr.com/bounties/271f94f2-1e05-4616-ac43-41752389e26b
https://github.com/scrapy/scrapy
https://nvd.nist.gov/vuln/detail/CVE-2024-1892
https://docs.scrapy.org/en/latest/news.html#scrapy-1-8-4-2024-02-14
https://github.com/scrapy/scrapy/commit/73e7c0ed011a0565a1584b8052ec757b54e5270b
https://www.mend.io/vulnerability-database/CVE-2024-1892

Severity Score

Weakness Type (CWE)

Inefficient Regular Expression Complexity

CWE-1333

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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