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pypi/urllib3Decompression Bomb Bypass via Negative max_length in Streaming API in urllib3

Risk 31
Severity
7.5
EPSS
0.30%
First published (updated )
CVE-2026-9375

pypi/urllib3urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects foll…

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2477167

pypi/urllib3urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress t…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2477154

pypi/urllib3urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient …

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2427726

oss-secCVE-2025-66418 & CVE-2025-66471 fixed in urllib3 2.6.0

First published (updated )
https://seclists.org/oss-sec/2025/q4/250
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pypi/urllib3urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.0 and prior to 2.6.…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2419467

pypi/urllib3urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6…

Risk 33
Severity
7
First published (updated )
REDHAT-BUG-2419455

pypi/urllib3urllib3 Streaming API improperly handles highly compressed data

Risk 50
Severity
8.9
First published (updated )
CVE-2025-66471

pypi/urllib3urllib3 allows an unbounded number of links in the decompression chain

Risk 50
Severity
8.9
First published (updated )
CVE-2025-66418

pypi/urllib3urllib3 vulnerability

Risk 23
First published (updated )
Advisory
USN-4570-1
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pypi/urllib3urllib3 vulnerability

Risk 23
First published (updated )
Advisory
USN-3990-2

pypi/urllib3urllib3 vulnerabilities

Risk 23
First published (updated )
Advisory
USN-3990-1

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