CVE-2026-11393

June 9, 2026, 1:34 p.m.

8.8
High

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.

Product(s) Impacted

Vendor Product Versions
Agentcore
  • Agentcore Cli
  • <0.14.2
Aws
  • Agentcore Runtime
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-94
Improper Control of Generation of Code ('Code Injection')
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a agentcore agentcore_cli <0.14.2 / / / / / / /
a aws agentcore_runtime / / / / / / / /

References

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

Tags

CWE-94
ff89ba41-3aa1-4d27-914a-91399e9639e5
2026-06-08
CVE-2026-11393

CVSS Score

8.8 / 10

CVSS Data - 4.0

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Attack Requirements: PRESENT
  • Privileges Required: LOW
  • User Interaction: ACTIVE
  • Scope:
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH
  • Exploit Maturity: NOT_DEFINED

    • 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

    View Vector String

Timeline

Published: June 8, 2026, 7:16 p.m.
Last Modified: June 9, 2026, 1:34 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

ff89ba41-3aa1-4d27-914a-91399e9639e5

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.