CVE-2026-18830

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.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-073-aws/

Configurations

No configuration.

History

04 Aug 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-08-04 18:16

Updated : 2026-08-04 19:16

NVD link : CVE-2026-18830

Mitre link : CVE-2026-18830

CVE.ORG link : CVE-2026-18830

JSON object : View

Products Affected

No product.

CWE

CWE-1287

Improper Validation of Specified Type of Input

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