CVE-2025-6176
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-31

Last updated on: 2025-11-04

Assigner: huntr.dev

Description
Scrapy versions up to 2.13.2 are vulnerable to a denial of service (DoS) attack due to a flaw in its brotli decompression implementation. The protection mechanism against decompression bombs fails to mitigate the brotli variant, allowing remote servers to crash clients with less than 80GB of available memory. This occurs because brotli can achieve extremely high compression ratios for zero-filled data, leading to excessive memory consumption during decompression.
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Meta Information
Published
2025-10-31
Last Modified
2025-11-04
Generated
2026-06-16
AI Q&A
2025-10-31
EPSS Evaluated
2026-06-15
NVD
CVE-2025-6176
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
scrapy scrapy *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
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Executive Summary

This vulnerability exists in Scrapy versions up to 2.13.2 and is due to a flaw in the brotli decompression implementation. The protection mechanism against decompression bombs does not work properly for brotli compressed data, allowing remote servers to send specially crafted compressed data that causes excessive memory consumption during decompression. This can lead to a denial of service (DoS) by crashing clients with less than 80GB of available memory.

Impact Analysis

The vulnerability can cause a denial of service (DoS) on clients using vulnerable Scrapy versions by crashing them due to excessive memory consumption during brotli decompression. This can disrupt services or applications relying on Scrapy for web scraping or data extraction, leading to downtime or loss of availability.

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