CVE-2026-18830
HIGH
NVD
CVSS Score
8.1
Severity
HIGH
Published
Aug 04, 2026
Vendor
unknown
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.