CVE-2026-18245 AWS CVE debrief

Who should care

Users of Amazon Amplify Codegen Ui version prior to 2.20.6, operators, platform administrators, vulnerability management teams, and security teams should be aware of this vulnerability and take necessary actions to upgrade to version 2.20.6. Affected scope includes end-user browsers, developer machines, CI/CD environments, and server-side rendering contexts. Security teams should review compensating controls for exposed systems while remediation is scheduled and verified. Vulnerability management teams should track exceptions, retest remediated assets, and close the item only after evidence is documented. Operators and platform administrators should confirm whether affected product deployments exist in managed environments and assign an owner for follow-up. They should also review relevant monitoring, detection, and logs for exposed assets that need extra review. Asset inventory management should be updated to reflect potential exposure. Rollback/change windows should be considered for remediation efforts. Source tracking should be implemented to monitor for potential exploitation attempts. Monitoring should be implemented to detect potential exploitation attempts. Compensating controls should be reviewed and implemented for exposed systems while remediation is scheduled and verified. Vendor patch guidance should be followed to upgrade to version 2.20.6. Exposure review should be conducted to determine the extent of potential exposure. Asset inventory should be reviewed and updated to reflect potential exposure. Monitoring and detection capabilities should be reviewed and updated to detect potential exploitation attempts. Compensating controls should be implemented to mitigate potential exposure. Vendor patch guidance should be followed to upgrade to version 2.20.6. Exposure review should be conducted to determine the extent of potential exposure. Asset inventory should be reviewed and updated to reflect potential exposure. Monitoring and detection capabilities should be reviewed and updated to detect potential exploitation attempts. Compensating controls should be implemented to mitigate potential exposure. Vendor patch guidance should be followed to upgrade to

Technical summary

The CVE-2026-18245 vulnerability is related to improper control of code generation in Amazon Amplify Codegen Ui versions prior to 2.20.6. This issue 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. Affected product context indicates that users of Amazon Amplify Codegen Ui should be aware of this vulnerability and take necessary actions to upgrade to version 2.20.6.

Defensive priority

Upgrade to version 2.20.6 to address the improper control of code generation vulnerability in Amazon Amplify Codegen Ui.

Recommended defensive actions

• Upgrade to version 2.20.6
• Review and update affected systems
• Monitor for potential exploitation attempts
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Review relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE-2026-18245 record indicates that Amazon Amplify Codegen Ui version prior to 2.20.6 is vulnerable to improper control of code generation, which might allow a remote authenticated user to execute arbitrary code. The issue is addressed in version 2.20.6. Evidence limits suggest that defenders verify affected product deployments, review official advisories, and plan vendor-supported updates or mitigations. Additional context from source items and CVE records indicates that this vulnerability has not been modified since its publication on 2026-07-30T19:17:26.610Z.

Official resources