CVE-2026-12530 Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()
Remote authenticated users can execute arbitrary commands in the Code Interpreter sandbox via crafted package names in the AWS Bedrock AgentCore Python SDK.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-12530?
CVE-2026-12530 is a high-severity command injection vulnerability in AWS bedrock-agentcore, published on 17 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Improper neutralization of argument delimiters in the install_packages() method in AWS Bedrock AgentCore Python SDK versions >= 1.1.3 and < 1.6.1 might allow a remote authenticated user to execute arbitrary commands within the Code Interpreter sandbox via crafted package name arguments.
To mitigate this issue, users should upgrade to version 1.6.1.
Weakness: CWE-88
Which versions are affected by CVE-2026-12530?
3 open source packages ship an affected version, including bedrock-agentcore.
| Package | Affected | Fixed in |
|---|---|---|
bedrock-agentcore PyPI | From 1.1.3 | 1.6.1 |
bedrock-agentcore PyPI | From 1.1.3 | 1.6.1 |
bedrock-agentcore PyPI | From 1.1.3 | 1.6.1 |
How do I fix CVE-2026-12530?
Upgrade bedrock-agentcore to 1.6.1 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-12530 being exploited?
There is no known exploitation of CVE-2026-12530 in the wild and no public exploit code.
Sources
Also known as GHSA-6rfw-mq36-jm8h, PYSEC-2026-2395.