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Critical 9.0Published Jun 8, 2026

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

Updated under an hour ago ()

Does this affect you?

It affects AWS AgentCore CLI. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
9.0 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Weakness (CWE)
CWE-94
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
AMZN
NVD analysis
Awaiting Analysis
Record last updated
Jun 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
AWS AgentCore CLI
aws:agentcore_cli (from the name)
from 0.4.0 through 0.14.1; from 0.3.0-preview.7.0 through 1.0.0-preview.8
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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