DISA Released RHEL 10 Security Guide

The March 2026 release established the required security baseline for Red Hat Enterprise Linux 10 on Defense networks.

Updated on Sept. 26, 2026 in Cybersecurity

Isometric editorial illustration showing a sturdy metallic server chassis, representing institutional security standards for defense information systems. — The Defense Information Systems Agency released the Security Technical Implementation Guide for Red Hat Enterprise Linux 10, establishing a mandatory security baseline for U.S. defense networks. AI Illustration. Upload story photo >

In March 2026, the Defense Information Systems Agency (DISA) published the Security Technical Implementation Guide (STIG) for Red Hat Enterprise Linux 10. This guidance established mandatory configuration requirements for any information systems connecting to Department of Defense networks.

Why it matters

Meeting these published security baselines is a non-negotiable requirement for hardware and software integration within the U.S. defense infrastructure. The release ensures that standardized security protocols are applied to RHEL 10 deployments across the military enterprise.

Compliance is achieved through the scap-security-guide version 0.1.82 profile, which aligns directly with the DISA STIG V1R2 baseline. This standardized profile provides the technical validation necessary to meet the agency's security requirements.

The players

Defense Information Systems Agency

A U.S. Department of Defense combat support agency that provides information technology and communications support to the federal government.

The details

The DISA defines security baselines through published Security Technical Implementation Guides, which serve as the configuration standard for securing software within the Department of Defense. To verify compliance, administrators utilize the Security Content Automation Protocol (SCAP) — a standard set of specifications for organizing and expressing security content. By applying the scap-security-guide version 0.1.82, systems are configured to meet the explicit security constraints dictated by the V1R2 baseline.

March 2026: DISA published the RHEL 10 STIG.

The Tech Race

This release integrates the latest iteration of the Red Hat enterprise platform into the standardized federal security stack. It aligns the Department of Defense security baseline with modern operating system architectures, ensuring that the transition to RHEL 10 maintains established security parity.

Systems administrators managing infrastructure for the Department of Defense must now utilize the scap-security-guide version 0.1.82 to maintain authorized network access. This requirement effectively mandates an update to existing configuration management workflows for all RHEL 10 deployments.

The takeaway

The publication of the RHEL 10 STIG provides the necessary framework for hardening modern Linux environments within the military. Organizations should verify their current scap-security-guide versions to ensure they align with the V1R2 baseline requirements for continued network eligibility.