Amazon Bedrock AgentCore Starter Toolkit up to 0.3.13 Agent Import code injection

Summaryinfo

A vulnerability marked as critical has been reported in Amazon Bedrock AgentCore Starter Toolkit up to 0.3.13. Affected by this issue is some unknown functionality of the component Agent Import. The manipulation leads to code injection. This vulnerability is referenced as CVE-2026-105812. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Amazon Bedrock AgentCore Starter Toolkit up to 0.3.13 and classified as critical. This issue affects an unknown code of the component Agent Import. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Improper control of code generation in the agent import functionality of Amazon Bedrock AgentCore Starter Toolkit before 0.3.14 might allow an authenticated same-account actor to execute arbitrary code when a user imports and runs or deploys a Bedrock Agent, via crafted configuration values incorporated into generated Python source without safe literal encoding. To remediate this issue, users should upgrade to version 0.3.14. Because this issue persists into generated source, upgrading alone is not sufficient: agents imported with an affected version must be re-imported with version 0.3.14 or later and their local and deployed output artifacts replaced.

It is possible to read the advisory at pypi.org. The identification of this vulnerability is CVE-2026-105812 since 10/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

Upgrading to version 0.3.14 eliminates this vulnerability.

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Productinfo

Vendor

• Amazon

Name

• Bedrock AgentCore Starter Toolkit

Version

• 0.3.0
• 0.3.1
• 0.3.2
• 0.3.3
• 0.3.4
• 0.3.5
• 0.3.6
• 0.3.7
• 0.3.8
• 0.3.9
• 0.3.10
• 0.3.11
• 0.3.12
• 0.3.13

License

• commercial

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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