UPDATE_ROLLBACK_FAILED ☁️ AWS

CloudFormation stack in UPDATE_ROLLBACK_FAILED

An update failed, and then the rollback also failed, leaving the stack stuck until you continue the rollback.

Seen on: AWS

Meaning

Rollbacks fail when a resource was changed or deleted outside CloudFormation, a dependency is gone, or permissions changed. Use ContinueUpdateRollback, optionally skipping resources that can’t be rolled back.

Common causes

  • Resource modified or deleted manually
  • Dependent resource no longer exists
  • Service limits or permissions changed mid-rollback

⚡ Quick fix

  1. Read the UPDATE_FAILED events during rollback
  2. aws cloudformation continue-update-rollback (with --resources-to-skip if needed)
  3. Fix drift, then retry the update

Detailed fix by platform

AWS CLI

  1. aws cloudformation continue-update-rollback --stack-name app --resources-to-skip MyBrokenResource

How to diagnose

  1. Events — Which resource failed to roll back and why
  2. Drift — detect-stack-drift

🔧 Still not fixed?

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