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PYSEC-2026-1906 Scrapy is vulnerable to a denial of service (DoS) attack due to flaws in brotli decompression implementation

🗓️ 07 Jul 2026 16:03:09Reported by GoogleType 
osv
 osv🔗 osv.dev👁 4 Views

Scrapy up to version 2.13.3 is vulnerable to a denial of service from brotli decompression flaws causing memory overflow; upgrade to brotli version 1.2.0.

Related
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
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13 Jul 2026 16:43Current
5.9Medium risk
Vulners AI Score5.9
CVSS 37.5
EPSS0.00509
scrapybrotli flawmemory overflowdenial of serviceversion 2.13.3brotli upgrade
4