CVE-2026-12530 AWS CVE debrief

Who should care

Users of AWS Bedrock AgentCore Python SDK versions >= 1.1.3 and < 1.6.1 should be aware of this vulnerability and take steps to mitigate it. This includes upgrading to version 1.6.1, restricting access to the Code Interpreter sandbox, and monitoring for suspicious activity. Security teams and operators managing these deployments should prioritize mitigation.

Technical summary

The install_packages() method in AWS Bedrock AgentCore Python SDK versions >= 1.1.3 and < 1.6.1 has an improper neutralization of argument delimiters vulnerability. This could allow a remote authenticated user to execute arbitrary commands within the Code Interpreter sandbox via crafted package name arguments. The vulnerability is due to insufficient validation of package name arguments. Users of affected versions should verify their deployments, review official advisories for mitigation steps, and consider restricting access to the Code Interpreter sandbox and monitoring for suspicious activity.

Defensive priority

High

Recommended defensive actions

• Upgrade to version 1.6.1 of AWS Bedrock AgentCore Python SDK
• Restrict access to the Code Interpreter sandbox
• Monitor for suspicious activity
• Review compensating controls for exposed systems
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets
• Confirm whether affected product deployments exist in managed environments

Evidence notes

The CVE record was published on 2026-06-17T22:16:20.740Z and was last modified on 2026-06-22T16:40:18.473Z. The NVD entry is currently Awaiting Analysis. This vulnerability affects AWS Bedrock AgentCore Python SDK versions >= 1.1.3 and < 1.6.1. Users should verify their deployments and review official advisories for mitigation steps.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.