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CVE-2026-11393— Code injection via improper triple-quote escaping in AgentCore CLI Bedrock Agent import

Quick assessment

Affected
AWS AgentCore CLI
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.

AgentCore CLI是Amazon Web Services开源的一个AI智能体开发部署命令行工具。 AgentCore CLI 0.14.2之前版本存在代码注入漏洞，该漏洞源于Python代码生成过程中三引号字符中和不当，可能导致认证远程攻击者通过存储在Bedrock Agent协作者上的特制collaborationInstruction，在导入代理时由其他用户处理，从而在AWS AgentCore Runtime上以导入代理的IAM执行角色执行任意代码，并在同一AWS账户中其他用户的本地环境执

CVSS 9.0 · Critical EPSS 0.34% · P26

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
AWS AgentCore CLI 0.4.0≤ 0.14.1 affected
0.3.0-preview.7.0≤ 1.0.0-preview.8 affected
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I. Basic Information for CVE-2026-11393

Vulnerability Information
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Vulnerability Title
Code injection via improper triple-quote escaping in AgentCore CLI Bedrock Agent import
Source: CVE Program / CVE List V5
Vulnerability Description
Improper neutralization of triple-quote characters during Python code generation in AgentCore CLI before v0.14.2 might allow an authenticated remote threat actor to execute arbitrary code on AWS AgentCore Runtime under the imported agent's IAM execution role and on the local environment of another user in the same AWS account, via a crafted collaborationInstruction stored on a Bedrock Agent collaborator and later processed by that other user during agent import. To remediate this issue, users should upgrade to version 0.14.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
AgentCore CLI 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AgentCore CLI是Amazon Web Services开源的一个AI智能体开发部署命令行工具。 AgentCore CLI 0.14.2之前版本存在代码注入漏洞，该漏洞源于Python代码生成过程中三引号字符中和不当，可能导致认证远程攻击者通过存储在Bedrock Agent协作者上的特制collaborationInstruction，在导入代理时由其他用户处理，从而在AWS AgentCore Runtime上以导入代理的IAM执行角色执行任意代码，并在同一AWS账户中其他用户的本地环境执
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 AgentCore CLI 0.4.0 ~ 0.14.1 -

II. Public POCs for CVE-2026-11393

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8517 chars
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III. Intelligence Information for CVE-2026-11393

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Patches & Fixes for CVE-2026-11393 (1)

Vendor Advisories for CVE-2026-11393 (2)

IV. Related Vulnerabilities

Same vendor: AWS
Same weakness: CWE-94