Vulnerability · Published Jun 17, 2026 · Assigned by AMZN

CVE-2026-12530Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()

High 7.3

In plain English

A high-severity argument injection in bedrock-agentcore from AWS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.3%top 72.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	bedrock-agentcore	1.6.1	GHSA-6rfw-mq36-jm8h
PyPI	bedrock-agentcore	1.6.1	PYSEC-2026-2395

Affected products (as reported)

Vendor	Product	Versions
AWS	bedrock-agentcore	1.1.3 – before 1.6.1

Weakness: CWE-88 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References

https://pypi.org/project/bedrock-agentcore/1.6.1/ release-notes
https://aws.amazon.com/security/security-bulletins/2026-044-aws/ vendor-advisory