CVE-2026-106032: Server-side request forgery and local file read via unrestricted external OpenAPI reference resolution in Bedrock AgentCore Starter Toolkit agent import
Server-side request forgery in the OpenAPI schema processing of the agent import functionality in Amazon Bedrock AgentCore Starter Toolkit before 0.3.14 might allow an authenticated remote actor in the same AWS account to cause the environment of a user importing a Bedrock Agent to issue arbitrary outbound requests and read arbitrary local files, via crafted external reference values in the OpenAPI content associated with a Bedrock Agent action group.
To remediate this issue, users should upgrade to version 0.3.14. Note that bedrock-agentcore-starter-toolkit is deprecated. The @aws/agentcore npm CLI is the supported replacement and does not contain this issue. Migration to @aws/agentcore is the recommended long-term path.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
bedrock-agentcore-starter-toolkitto a version that resolves this vulnerability.Fixed in 0.3.14
Event History
Frequently Asked Questions
Who can exploit this issue?
An authenticated remote actor in the same AWS account can exploit it by supplying crafted external reference values in OpenAPI content associated with a Bedrock Agent action group. Exploitation also requires a user to import the affected Bedrock Agent.
What can exploitation allow?
It can cause the environment performing the agent import to make arbitrary outbound requests and read arbitrary local files. The vulnerability affects OpenAPI schema processing during agent import.
Which versions are affected and what is the immediate remediation?
Versions of bedrock-agentcore-starter-toolkit before 0.3.14 are affected. Upgrade to version 0.3.14 to remediate the issue.
What is the recommended long-term path?
bedrock-agentcore-starter-toolkit is deprecated. Migrate to the supported @aws/agentcore npm CLI, which does not contain this issue.