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AWS eks: EKS doc history: AmazonEKSServiceRolePolicy permission additions

Service: eks · 2026-10-06 · Documentation medium

File: eks/latest/userguide/doc-history.md · Type: iam

Summary

Adds a document-history entry recording that eks:CreateCertificateAuthority, eks:ActivateCertificateAuthority, eks:DeleteCertificateAuthority, and ec2:RebootInstances were added to AmazonEKSServiceRolePolicy for CA rotation and EKS Auto Mode instance reboots.

Security assessment

The entry documents expansion of an AWS service-linked role's IAM permissions, including certificate authority lifecycle management and EC2 instance reboot. This is IAM/privilege-relevant transparency documentation rather than a fix for a specific vulnerability, so it is security-adjacent (medium) but not tied to an incident or CVE.

Evidence

+[AWS managed policy updates](https://docs.aws.amazon.com/eks/latest/userguide/security-iam-awsmanpol.html)| Added the `eks:CreateCertificateAuthority`, `eks:ActivateCertificateAuthority`, `eks:DeleteCertificateAuthority`, and `ec2:RebootInstances` permissions to `AmazonEKSServiceRolePolicy`. These permissions allow Amazon EKS to rotate cluster certificate authorities and reboot Amazon EC2 instances managed by EKS Auto Mode.| October 1, 2026  

Diff

diff --git a/eks/latest/userguide/doc-history.md b/eks/latest/userguide/doc-history.md
index 1098811..c44e0ed 100644
--- a//eks/latest/userguide/doc-history.md
+++ b//eks/latest/userguide/doc-history.md
@@ -20,0 +21 @@ Change| Description| Date
+[AWS managed policy updates](https://docs.aws.amazon.com/eks/latest/userguide/security-iam-awsmanpol.html)| Added the `eks:CreateCertificateAuthority`, `eks:ActivateCertificateAuthority`, `eks:DeleteCertificateAuthority`, and `ec2:RebootInstances` permissions to `AmazonEKSServiceRolePolicy`. These permissions allow Amazon EKS to rotate cluster certificate authorities and reboot Amazon EC2 instances managed by EKS Auto Mode.| October 1, 2026