vulnerability

Alpine Linux: CVE-2025-66418: Allocation of Resources Without Limits or Throttling

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Dec 5, 2025
Added
Jan 26, 2026
Modified
Jan 26, 2026

Description

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 number of compression steps leading to high CPU usage and massive memory allocation for the decompressed data. This vulnerability is fixed in 2.6.0.

Solution

alpine-linux-upgrade-py3-urllib3
Title
NEW

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