CVE-2026-11393

Code injection via improper triple-quote escaping in AgentCore CLI Bedrock Agent import

Published Jun 8, 2026 CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m4x6-gwgp-4pm7 AgentCore CLI Bedrock Agent Import Vulnerable to Code Injection via Improper Triple-Quote Escaping
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMZN
Published
Updated
Jun 8, 2026, 7:45 PM
Reserved
Jun 5, 2026, 4:15 PM
Status
Awaiting Analysis
Published
Jun 8, 2026, 7:16 PM
Modified
Jul 23, 2026, 8:10 AM