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Scrapy is vulnerable to a denial of service (DoS) attack due to flaws in brotli decompression implementation

🗓️ 31 Oct 2025 00:30:35Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 10 Views

Brotli DoS via decompression affects up to version 1.1.0; patched in 1.2.0 and Scrapy up to 2.13.2.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Muliple security vulnerabilities found in IBM CICS TX Standard.
22 Apr 202614:23
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in brotli affects IBM Netezza Appliance
16 Apr 202611:17
–ibm
IBM Security Bulletins		Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to a denial of service in the Base OS image package: Scrapy [CVE-2025-6176]
14 Apr 202615:32
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in brotli affects IBM Netezza Appliance
27 Apr 202613:05
–ibm
IBM Security Bulletins		Security Bulletin: ELM on Hybrid Cloud vulnerabilities addressed in 2.0.0
20 Apr 202609:57
–ibm
Huntr		Brotli decompression bomb DoS
14 Jun 202518:41
–huntr
Tenable Nessus		Alibaba Cloud Linux 3 : 0039: brotli (ALINUX3-SA-2026:0039)
5 Mar 202600:00
–nessus
Tenable Nessus		AlmaLinux 10 : brotli (ALSA-2026:0845)
21 Jan 202600:00
–nessus
Tenable Nessus		AlmaLinux 9 : brotli (ALSA-2026:2042)
5 Feb 202600:00
–nessus
Tenable Nessus		AlmaLinux 8 : brotli (ALSA-2026:2389)
11 Feb 202600:00
–nessus
Rows per page
Vulners
Node
scrapyscrapyRange≤2.13.3pip
OR
googlebrotliRange≤1.1.0pip

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17 Nov 2025 15:50Current
7.1High risk
Vulners AI Score7.1
CVSS 37.5
EPSS0.00036
SSVC
CWE-400
Brotli vulnerabilitydenial of serviceversion 1.1.0version 1.2.0scrapy 2.13.2memory exhaustionzero filled datadecompression bomb
10