CVE-2026-18245

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

CVSS 4.0

6.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.0% chance of exploitation in the next 30 days; higher than 62% of CVEs (scores of 2026-10-25)

CWE

CWE-94

Published

2026-07-30

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• amazon:amplify_codegen_ui

References

• https://aws.amazon.com/security/security-bulletins/2026-066-aws/
• https://github.com/aws-amplify/amplify-codegen-ui/releases/tag/v2.20.6
• https://github.com/aws-amplify/amplify-codegen-ui/security/advisories/GHSA-74xx-rjgf-m69j

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