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CVE-2026-44432

Medium priority
Needs evaluation

urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was...

2 affected packages

python-urllib3, python-pip

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-urllib3 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
python-pip Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-44431

Medium priority
Needs evaluation

urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these...

2 affected packages

python-urllib3, python-pip

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-urllib3 Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
python-pip Needs evaluation Needs evaluation Needs evaluation Needs evaluation Needs evaluation
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CVE-2026-21441

Medium priority

Some fixes available 6 of 13

urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at...

2 affected packages

python-urllib3, python-pip

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-urllib3 Not affected Fixed Fixed Fixed Ignored
python-pip Vulnerable Vulnerable Vulnerable Fixed Ignored
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CVE-2025-66471

Medium priority

Some fixes available 4 of 18

urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.0 and prior to 2.6.0, the Streaming API improperly handles highly compressed data. urllib3's streaming API is designed for the efficient handling of...

2 affected packages

python-urllib3, python-pip

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-urllib3 Fixed Fixed Ignored Ignored Ignored
python-pip Vulnerable Vulnerable Ignored Ignored Ignored
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CVE-2025-66418

Medium priority

Some fixes available 7 of 12

urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited...

2 affected packages

python-urllib3, python-pip

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-urllib3 Fixed Fixed Fixed Fixed Not affected
python-pip Vulnerable Vulnerable Vulnerable Fixed Not affected
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CVE-2025-50182

Medium priority
Fixed

urllib3 is a user-friendly HTTP client library for Python. Starting in version 2.2.0 and prior to 2.5.0, urllib3 does not control redirects in browsers and Node.js. urllib3 supports being used in a Pyodide runtime utilizing the...

2 affected packages

python-pip, python-urllib3

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-pip Not affected Not affected Not affected Not affected
python-urllib3 Not affected Not affected Not affected Not affected
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CVE-2025-50181

Medium priority
Fixed

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,...

2 affected packages

python-pip, python-urllib3

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-pip Fixed Fixed Not affected Not affected
python-urllib3 Fixed Fixed Fixed Fixed
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CVE-2024-37891

Low priority

Some fixes available 12 of 16

urllib3 is a user-friendly HTTP client library for Python. When using urllib3's proxy support with `ProxyManager`, the `Proxy-Authorization` header is only sent to the configured proxy, as expected. However, when sending HTTP...

2 affected packages

python-pip, python-urllib3

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-pip Not affected Fixed Fixed Fixed Fixed
python-urllib3 Not affected Fixed Fixed Fixed Fixed
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CVE-2023-45803

Medium priority

Some fixes available 13 of 16

urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one...

2 affected packages

python-pip, python-urllib3

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-pip Not affected Fixed Fixed Fixed Fixed
python-urllib3 Not affected Not affected Fixed Fixed Fixed
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CVE-2018-25091

Medium priority

Some fixes available 4 of 7

urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be...

2 affected packages

python-urllib3, python-pip

Package 26.04 LTS 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
python-urllib3 Not affected Not affected Not affected Not affected Fixed
python-pip Not affected Not affected Not affected Not affected Fixed
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