Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-3979
Advisory Released Date: 2026-10-12
Advisory Updated Date: 2026-10-12
Severity:
Important
Issue Overview:
A code execution flaw was found in Emacs, affecting versions prior to 31.2. The Flymake mode using language backends other than Lisp would execute arbitrary code from the edited file while performing syntax checking. Viewing or editing untrusted files using Emacs could lead to arbitrary code execution with the privileges of the user running Emacs. (CVE-2026-96442)
Affected Packages:
emacs
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 emacs or yum update --advisory ALAS2-2026-3979 to update your system.
New Packages:
aarch64:
emacs-27.2-4.amzn2.0.9.aarch64
emacs-lucid-27.2-4.amzn2.0.9.aarch64
emacs-nox-27.2-4.amzn2.0.9.aarch64
emacs-common-27.2-4.amzn2.0.9.aarch64
emacs-devel-27.2-4.amzn2.0.9.aarch64
emacs-debuginfo-27.2-4.amzn2.0.9.aarch64
i686:
emacs-27.2-4.amzn2.0.9.i686
emacs-lucid-27.2-4.amzn2.0.9.i686
emacs-nox-27.2-4.amzn2.0.9.i686
emacs-common-27.2-4.amzn2.0.9.i686
emacs-devel-27.2-4.amzn2.0.9.i686
emacs-debuginfo-27.2-4.amzn2.0.9.i686
noarch:
emacs-terminal-27.2-4.amzn2.0.9.noarch
emacs-filesystem-27.2-4.amzn2.0.9.noarch
src:
emacs-27.2-4.amzn2.0.9.src
x86_64:
emacs-27.2-4.amzn2.0.9.x86_64
emacs-lucid-27.2-4.amzn2.0.9.x86_64
emacs-nox-27.2-4.amzn2.0.9.x86_64
emacs-common-27.2-4.amzn2.0.9.x86_64
emacs-devel-27.2-4.amzn2.0.9.x86_64
emacs-debuginfo-27.2-4.amzn2.0.9.x86_64