Amazon Linux 2 Security Advisory: ALAS2-2026-3785
Advisory Released Date: 2026-07-08
Advisory Updated Date: 2026-07-08
Severity:
Medium
Issue Overview:
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling. (CVE-2026-6653)
Affected Packages:
libxml2
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 libxml2 or yum update --advisory ALAS2-2026-3785 to update your system.
New Packages:
aarch64:
libxml2-2.9.1-6.amzn2.5.25.aarch64
libxml2-devel-2.9.1-6.amzn2.5.25.aarch64
libxml2-static-2.9.1-6.amzn2.5.25.aarch64
libxml2-python-2.9.1-6.amzn2.5.25.aarch64
libxml2-debuginfo-2.9.1-6.amzn2.5.25.aarch64
i686:
libxml2-2.9.1-6.amzn2.5.25.i686
libxml2-devel-2.9.1-6.amzn2.5.25.i686
libxml2-static-2.9.1-6.amzn2.5.25.i686
libxml2-python-2.9.1-6.amzn2.5.25.i686
libxml2-debuginfo-2.9.1-6.amzn2.5.25.i686
src:
libxml2-2.9.1-6.amzn2.5.25.src
x86_64:
libxml2-2.9.1-6.amzn2.5.25.x86_64
libxml2-devel-2.9.1-6.amzn2.5.25.x86_64
libxml2-static-2.9.1-6.amzn2.5.25.x86_64
libxml2-python-2.9.1-6.amzn2.5.25.x86_64
libxml2-debuginfo-2.9.1-6.amzn2.5.25.x86_64