Amazon Linux 2023 Security Advisory: ALAS2023-2026-3135
Advisory Released Date: 2026-09-29
Advisory Updated Date: 2026-09-29
Severity:
Important
Issue Overview:
_module_comgen_words_and_files() fed untrusted text (module names read
off disk, LOADEDMODULES, MODULEPATH) straight into `compgen -W`, which
performs a full unquoted-word expansion on its wordlist -- including
command substitution -- as a normal, documented part of its behavior.
A module name, loaded-module entry, or MODULEPATH component containing
e.g. `$(...)` therefore ran arbitrary shell code the moment a user
pressed Tab. (CVE-2026-85013)
Affected Packages:
environment-modules
Issue Correction:
Run dnf update environment-modules --releasever 2023.12.20260928 or dnf update --advisory ALAS2023-2026-3135 --releasever 2023.12.20260928 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
environment-modules-debugsource-4.8.0-1.amzn2023.0.3.aarch64
environment-modules-4.8.0-1.amzn2023.0.3.aarch64
environment-modules-compat-4.8.0-1.amzn2023.0.3.aarch64
environment-modules-debuginfo-4.8.0-1.amzn2023.0.3.aarch64
environment-modules-compat-debuginfo-4.8.0-1.amzn2023.0.3.aarch64
src:
environment-modules-4.8.0-1.amzn2023.0.3.src
x86_64:
environment-modules-compat-debuginfo-4.8.0-1.amzn2023.0.3.x86_64
environment-modules-debugsource-4.8.0-1.amzn2023.0.3.x86_64
environment-modules-debuginfo-4.8.0-1.amzn2023.0.3.x86_64
environment-modules-compat-4.8.0-1.amzn2023.0.3.x86_64
environment-modules-4.8.0-1.amzn2023.0.3.x86_64