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Veracode SCA - CVE-2025-66471 - urllib3 [VID-SCA:CVE-2025-66471:urllib3] #2218

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urllib3 - CVE-2025-66471

urllib3 is vulnerable to Denial-Of-Service (DoS). The vulnerability is due to improper handling of highly compressed data in the streaming API, where decompression continues until the requested chunk size is satisfied, allowing a small, highly compressed response to be fully decompressed in a single operation, leading to excessive CPU usage and large memory allocation.

CVSS Score: 7.8 - High

CVE Link: http://nvd.nist.gov/vuln/detail/CVE-2025-66471

License: mit

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