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CVE-2026-16796— Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()

Quick assessment

Affected
AWS bedrock-agentcore 1.18.1
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AWS Bedrock AgentCore SDK是AWS公司开源的一个用于将本地 AI 智能体零基础设施部署到 AWS 的 SDK，支持多种开源框架，提供运行时、记忆、网关、代码解释器等企业级服务。 Amazon Bedrock AgentCore SDK 1.18.1之前版本存在命令注入漏洞，该漏洞源于install_packages()方法对参数分隔符中和不当，可能允许远程认证用户通过特制的包名参数在Code Interpreter沙箱中执行任意命令。

CVSS 7.3 · High EPSS 0.73% · P53

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
AWS bedrock-agentcore 1.18.1 < 1.18.1 affected
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I. Basic Information for CVE-2026-16796

Vulnerability Information
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Vulnerability Title
Improper neutralization of argument delimiters in AWS Bedrock AgentCore Python SDK install_packages()
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of argument delimiters in the install_packages() method in AWS Bedrock AgentCore Python SDK before 1.18.1 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 the patched version 1.18.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Amazon Bedrock AgentCore SDK 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AWS Bedrock AgentCore SDK是AWS公司开源的一个用于将本地 AI 智能体零基础设施部署到 AWS 的 SDK，支持多种开源框架，提供运行时、记忆、网关、代码解释器等企业级服务。 Amazon Bedrock AgentCore SDK 1.18.1之前版本存在命令注入漏洞，该漏洞源于install_packages()方法对参数分隔符中和不当，可能允许远程认证用户通过特制的包名参数在Code Interpreter沙箱中执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AWS bedrock-agentcore 1.18.1 0 ~ 1.18.1 -

II. Public POCs for CVE-2026-16796

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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claude_code · 11658 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2026-16796

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Vendor Advisories for CVE-2026-16796 (2)

Same Patch Batch · AWS · 2026-07-23 · 3 CVEs total

CVE-2026-16756 7.5 HIGH Allocation of resources without limits in the default aws-smithy-http-server serve() path
CVE-2026-16584 7.0 HIGH AWS API MCP Server Security Policy Bypass via Startup Failure

IV. Related Vulnerabilities

Same vendor: AWS
Same weakness: CWE-88

V. Comments for CVE-2026-16796

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