Arbitrary Code Injection Affecting @aws-amplify/codegen-ui-react package, versions <2.20.6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 Aug 2026
- disclosed30 Jul 2026
- creditUnknown
Introduced: 30 Jul 2026
NewCVE-2026-18245 (opens in a new tab)How to fix?
Upgrade @aws-amplify/codegen-ui-react to version 2.20.6 or higher.
Overview
@aws-amplify/codegen-ui-react is an Amplify UI React code generation implementation
Affected versions of this package are vulnerable to Arbitrary Code Injection through the ReactThemeStudioTemplateRenderer in packages/codegen-ui-react/lib/react-theme-studio-template-renderer.ts. An attacker can inject arbitrary JavaScript into generated .tsx output by supplying crafted theme schema keys that are passed to factory.createIdentifier() and emitted verbatim as source. This affects theme rendering for Studio-generated components, so a malicious or tampered theme definition can break generated code and execute attacker-controlled code during component rendering or build-time processing in developer, CI, browser, or SSR contexts.