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AWS parallelcluster documentation change

Service: parallelcluster · 2026-06-04 · Documentation low

File: parallelcluster/latest/ug/login-nodes-imds.md

Summary

Updated OS list and formatting for IMDS access restrictions

Security assessment

Clarifies existing security controls (IMDS access restrictions) but doesn't introduce new security documentation or address vulnerabilities.

Diff

diff --git a/parallelcluster/latest/ug/login-nodes-imds.md b/parallelcluster/latest/ug/login-nodes-imds.md
index b51b84ed2..5dfb23f17 100644
--- a//parallelcluster/latest/ug/login-nodes-imds.md
+++ b//parallelcluster/latest/ug/login-nodes-imds.md
@@ -9 +9 @@
-Access to the login node's IMDS (and the instance profile credentials) is restricted to root user, cluster administrative user (`pc-cluster-admin`by default) and operating system specific default user (`ec2-user`on Amazon Linux 2 and RedHat, and `ubuntu`on Ubuntu 18.04. 
+Access to the login node's IMDS (and the instance profile credentials) is restricted to root user, cluster administrative user (`pc-cluster-admin` by default) and operating system specific default user (`ec2-user` on Amazon Linux 2, Amazon Linux 2023 and Red Hat, and `ubuntu` on Ubuntu 22.04 and Ubuntu 24.04)