High severity · published Jul 30, 2026
CVE-2026-18245
Incomplete fix for CVE-2025-4318 code injection in Amazon @aws-amplify/codegen-ui-react
8.8
CVSS
1%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 62% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
Amplify Codegen UI · AWS
before 2.20.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18245
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18245
Vendor Advisory
https://aws.amazon.com/security/security-bulletins/2026-066-aws/
Release Notes
https://github.com/aws-amplify/amplify-codegen-ui/releases/tag/v2.20.6
Patch
https://github.com/aws-amplify/amplify-codegen-ui/security/advisories/GHSA-74xx-rjgf-m69j