CVE-2026-11393 PUBLISHED

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

Assigner: AMZN
Reserved: 05.06.2026 Published: 08.06.2026 Updated: 08.06.2026

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.

Metrics

CVSS 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
CVSS Score: 8.8

Product Status

Vendor AWS
Product AgentCore CLI
Versions Default: unaffected
  • affected from 0.4.0 to 0.14.1 (incl.)
  • affected from 0.3.0-preview.7.0 to 1.0.0-preview.8 (incl.)

References

Problem Types

  • CWE-94: Improper Control of Generation of Code ('Code Injection') CWE

Impacts

  • CAPEC-242: Code Injection