CVE-2025-6176: high-severity vulnerability in scrapy/scrapy
Brotli decompression bomb DoS in scrapy/scrapy
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
scrapy · scrapy/scrapyRelated CVEs — scrapy/scrapy
In the same product, most dangerous first.
CVE-2022-0577HIGHExposure of Sensitive Information to an Unauthorized Actor in scrapy/scrapyEPSS 1.2%CVE-2024-3572HIGHXML External Entity (XXE) Vulnerability in scrapy/scrapyEPSS 0.8%CVE-2024-1968HIGHAuthorization Header Leakage in scrapy/scrapy on Scheme Change RedirectsEPSS 0.7%CVE-2024-3574HIGHAuthorization Header Leak During Cross-Domain Redirect in scrapy/scrapyEPSS 0.6%CVE-2024-1892HIGHReDoS Vulnerability in scrapy/scrapy's XMLFeedSpiderEPSS 0.6%