AWS Security ChangesHomeSearch

AWS batch documentation change

Service: batch · 2026-05-16 · Documentation medium

File: batch/latest/userguide/mnp-ce.md

Summary

Clarified security group behavior for multi-node parallel jobs, explicitly stating they don't use launch template security groups

Security assessment

Documents security group configuration behavior which could prevent misconfiguration risks, but no evidence of a specific security issue being fixed.

Diff

diff --git a/batch/latest/userguide/mnp-ce.md b/batch/latest/userguide/mnp-ce.md
index baa266f41..a21d992de 100644
--- a//batch/latest/userguide/mnp-ce.md
+++ b//batch/latest/userguide/mnp-ce.md
@@ -19 +19 @@ There are several things to consider when configuring compute environments to ru
-  * Your compute environment might have no more than five security groups associated with it. The elastic network interfaces that are created and attached to an MNP task will use the security groups specified in your compute environment, If you don't specify a security group, the default security group for the VPC is used.
+  * Your compute environment might have no more than five security groups associated with it. The elastic network interfaces that are created and attached to an MNP task will use the security groups specified in your compute environment, If you don't specify a security group, the default security group for the VPC is used. Unlike regular AWS Batch jobs, multi-node parallel jobs do not use security groups specified in launch templates.