CVE-2026-18245: Amazon Amplify Codegen UI

High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days.

Improper control of code generation in Amazon @aws-amplify/codegen-ui-react before 2.20.6 might allow a remote authenticated user to execute arbitrary code in end-user browsers, developer machines, CI/CD environments, and server-side rendering contexts via crafted Studio component or theme schema values due to insufficient coverage and effectiveness of the input validation introduced for CVE-2025-4318. To remediate this issue, users should upgrade to version 2.20.6

Affected products

• Amazon Amplify Codegen UI: before 2.20.6 (fixed in 2.20.6)

Published 2026-07-30. Last modified 2026-08-10.