Amazon Linux 2 Security Advisory: ALAS2-2026-3376
Advisory Released Date: 2026-06-22
Advisory Updated Date: 2026-06-22
Severity:
Medium
Issue Overview:
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 sensitive headers. This vulnerability is fixed in 2.7.0. (CVE-2026-44431)
Affected Packages:
python3-urllib3
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update python3-urllib3 or yum update --advisory ALAS2-2026-3376 to update your system.
New Packages:
noarch:
python3-urllib3-1.25.6-2.amzn2.0.6.noarch
src:
python3-urllib3-1.25.6-2.amzn2.0.6.src