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CVE-2025-66471 urllib3 Streaming API improperly handles highly compressed data

🗓️ 05 Dec 2025 16:06:08Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 11 Views

CVE-2025-66471: urllib3 streaming interface decodes highly compressed data, causing high CPU and memory usage.

Refs

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12 Aug 2026 03:51Current
6.8Medium risk
Vulners AI Score6.8
CVSS 48.9
11