🛡️ CVE-2025-66471
🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-409 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

urllib3 streaming API improperly handles highly compressed data

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
CWE CWE-409
Public Exploit ✅ No
Source OSV
Published 2025-12-05
Updated 2026-06-15
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
urllib3 1.0 2.6.0

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