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I. Basic Information for CVE-2025-50181
Vulnerability Information

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Vulnerability Title
urllib3 redirects are not disabled when retries are disabled on PoolManager instantiation
Source: NVD (National Vulnerability Database)
Vulnerability Description
urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, it is possible to disable redirects for all requests by instantiating a PoolManager and specifying retries in a way that disable redirects. By default, requests and botocore users are not affected. An application attempting to mitigate SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level will remain vulnerable. This issue has been patched in version 2.5.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: NVD (National Vulnerability Database)
Vulnerability Title
urllib3 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
urllib3是urllib3开源的一款Python HTTP库。该产品具有线程安全连接池、文件发布支持等。 urllib3 2.5.0之前版本存在输入验证错误漏洞,该漏洞源于禁用重定向的配置方式无法有效防止SSRF或开放重定向漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
urllib3urllib3 < 2.5.0 -
II. Public POCs for CVE-2025-50181
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III. Intelligence Information for CVE-2025-50181
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IV. Related Vulnerabilities
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