Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-3918
Advisory Released Date: 2026-09-14
Advisory Updated Date: 2026-09-14
Severity:
Important
Issue Overview:
Backtracking leads to exponential load time in libyaml library. (CVE-2026-63676)
Affected Packages:
perl-YAML
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 perl-YAML or yum update --advisory ALAS2-2026-3918 to update your system.
New Packages:
noarch:
perl-YAML-0.84-5.amzn2.0.1.noarch
src:
perl-YAML-0.84-5.amzn2.0.1.src