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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
AWS AgentCore CLI unaffected
Version Status Constraints
0.4.0 affected ≤ 0.14.1
0.3.0-preview.7.0 affected ≤ 1.0.0-preview.8

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://aws.amazon.com/security/security-bulletins/2026-040-aws/ cve-icon cve-icon
https://github.com/aws/agentcore-cli/releases/tag/v0.14.2 cve-icon cve-icon
https://github.com/aws/agentcore-cli/security/advisories/GHSA-m4x6-gwgp-4pm7 cve-icon cve-icon
https://www.npmjs.com/package/@aws/agentcore/v/0.14.2 cve-icon cve-icon
https://www.npmjs.com/package/@aws/agentcore/v/1.0.0-preview.9 cve-icon cve-icon
History

Mon, 08 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title Code injection via improper triple-quote escaping in AgentCore CLI Bedrock Agent import
First Time appeared Aws
Aws agentcore Cli
Weaknesses CWE-94
CPEs cpe:2.3:a:aws:agentcore_cli:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws agentcore Cli
References
Metrics cvssV3_1

{'score': 9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-06-08T19:45:58.413Z

Reserved: 2026-06-05T16:15:22.377Z

Link: CVE-2026-11393

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-08T19:16:41.270

Modified: 2026-06-08T19:16:41.270

Link: CVE-2026-11393

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-08T20:30:06Z

Weaknesses