{"id":"CVE-2026-18245","aliases":["EUVD-2026-51268","GHSA-74xx-rjgf-m69j"],"status":"published","title":"Incomplete fix for CVE-2025-4318 code injection in Amazon @aws-amplify/codegen-ui-react","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.\n\n\n\nTo remediate this issue, users should upgrade to version 2.20.6","severity":{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00987,"percentile":0.62924,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2026-07-30T18:13:07Z","modified":"2026-10-28T02:30:20Z","products":[{"vendor":"amazon","product":"amplify_codegen_ui"},{"vendor":"aws","product":"amplify codegen ui"}],"references":[{"url":"https://github.com/aws-amplify/amplify-codegen-ui/releases/tag/v2.20.6","tags":["patch","Release Notes","fix"]},{"url":"https://aws.amazon.com/security/security-bulletins/2026-066-aws/","tags":["vendor-advisory","Vendor Advisory","advisory"]},{"url":"https://github.com/aws-amplify/amplify-codegen-ui/security/advisories/GHSA-74xx-rjgf-m69j","tags":["third-party-advisory","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18245.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18245","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-18245","title":"Incomplete fix for CVE-2025-4318 code injection in Amazon @aws-amplify/codegen-ui-react","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.\n\n\n\nTo remediate this issue, users should upgrade to version 2.20.6","status":"published","published":"2026-07-30T18:13:07.047Z","modified":"2026-07-30T19:15:12.776Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium","assessor":"cna"},{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:20:12.260247Z"}],"euvd":[{"id":"EUVD-2026-51268","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.\n\n\n\nTo remediate this issue, users should upgrade to version 2.20.6","status":"published","published":"2026-07-30T18:13:07Z","modified":"2026-07-30T19:15:12Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"updated_at":"2026-11-02T18:02:27.634971Z"}],"nvd":[{"id":"CVE-2026-18245","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.\n\n\n\nTo remediate this issue, users should upgrade to version 2.20.6","status":"published","published":"2026-07-30T19:17:26.61Z","modified":"2026-10-23T22:10:00.16Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:12:33.955581Z"}],"osv":[{"id":"CVE-2026-18245","title":"Incomplete fix for CVE-2025-4318 code injection in Amazon @aws-amplify/codegen-ui-react","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.\n\n\n\nTo remediate this issue, users should upgrade to version 2.20.6","status":"published","published":"2026-07-30T18:13:07.047Z","modified":"2026-10-28T02:30:20.919217462Z","cvss":[{"version":"4.0","score":6.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H","level":"medium"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:44:58.024074Z"}]}}