{"id":"CVE-2026-18830","revision":"02a5a673eff647468bea6d48a735e74a","records":[{"revision":"02a5a673eff647468bea6d48a735e74a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-18830","aliases":[],"title":"Insufficient input validation in Amazon Bedrock AgentCore harness InvokeHarness API","description":"Insufficient input validation in Amazon Bedrock AgentCore harness might allow an authenticated remote user to execute configured tools bypassing model invocation and security controls via crafted content blocks in conversation messages. AWS has addressed this issue. No customer action is required.","state":0,"publishedAt":"2026-08-04T17:42:20.619+00:00","modifiedAt":"2026-10-11T20:09:05.084+00:00","affected":[{"ecosystem":"Vendor product","name":"Amazon Bedrock AgentCore harness","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"AWS\",\n                    \"product\": \"Amazon Bedrock AgentCore harness\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"N/A\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1,"severity":"HIGH"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","score":8.6,"severity":"HIGH"}],"references":["https://aws.amazon.com/security/security-bulletins/2026-073-aws/"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-18830","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-18830","identifiers":["CVE-2026-18830"]},"retained":false,"historicalAffected":[]}],"coverage":[]}