AlmaLinux OS 9 must be a supported release.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
high	V-269454	SRG-OS-000439-GPOS-00195	ALMA-09-045125	SV-269454r1155282_rule	2025-11-25	1

Description
Security flaws with operating systems are discovered daily. Vendors are constantly updating and patching their products to address newly discovered security vulnerabilities. Organizations (including any contractor to the organization) are required to promptly install security-relevant software updates (e.g., patches, service packs, and hot fixes). Flaws discovered during security assessments, continuous monitoring, incident response activities, or information system error handling must also be addressed expeditiously. End Of Life dates for AlmaLinux OS 9 releases are as follows: Active / Full Support: 31 May 2027. Security-only / Maintenance Support: 31 May 2032. Each minor version (released roughly every six months) reaches end of life when the new version is released. AlmaLinux 9.0 (Emerald Puma) released 26 May 2022. AlmaLinux 9.1 (Lime Lynx) released 17 Nov 2022. AlmaLinux 9.2 (Turquoise Kodkod) released 10 May 2023. AlmaLinux 9.3 (Shamrock Pampas Cat) released 13 Nov 2023. AlmaLinux 9.4 (Seafoam Ocelot) released 06 May 2024. AlmaLinux 9.5 (Teal Serval) released 18 Nov 2024. AlmaLinux 9.6 (Sage Margay) released 20 May 2025.

Description

Security flaws with operating systems are discovered daily. Vendors are constantly updating and patching their products to address newly discovered security vulnerabilities. Organizations (including any contractor to the organization) are required to promptly install security-relevant software updates (e.g., patches, service packs, and hot fixes). Flaws discovered during security assessments, continuous monitoring, incident response activities, or information system error handling must also be addressed expeditiously. End Of Life dates for AlmaLinux OS 9 releases are as follows: Active / Full Support: 31 May 2027. Security-only / Maintenance Support: 31 May 2032. Each minor version (released roughly every six months) reaches end of life when the new version is released. AlmaLinux 9.0 (Emerald Puma) released 26 May 2022. AlmaLinux 9.1 (Lime Lynx) released 17 Nov 2022. AlmaLinux 9.2 (Turquoise Kodkod) released 10 May 2023. AlmaLinux 9.3 (Shamrock Pampas Cat) released 13 Nov 2023. AlmaLinux 9.4 (Seafoam Ocelot) released 06 May 2024. AlmaLinux 9.5 (Teal Serval) released 18 Nov 2024. AlmaLinux 9.6 (Sage Margay) released 20 May 2025.

ℹ️ Check
Verify that the version of AlmaLinux is vendor supported with the following command: $ cat /etc/almalinux-release AlmaLinux release 9.6 (Sage Margay) If the installed version of AlmaLinux is not supported, this is a finding.

✔️ Fix
Extended vendor support is available from TuxCare as part of the Enterprise Support for AlmaLinux product line. Access this (and the FIPS packages) by purchasing an ESU license key.