AgentCore CLI Bedrock Agent Import Vulnerable to Code Injection via Improper Triple-Quote Escaping

Date Jul 29, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product npm · @aws/agentcore

CVE CVE-2026-11393

High-risk advisory CVE-2026-11393

Summary

AgentCore CLI Bedrock Agent Import Vulnerable to Code Injection via Improper Triple-Quote Escaping

Why it matters

GitHub has published a reviewed security advisory for @aws/agentcore. Prioritize it with other application dependency updates, especially because EPSS places it in the 25% percentile.

Operator check

Check whether @aws/agentcore is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 8.8. EPSS probability: 0.3%; percentile: 25%.

Sources

GitHub Advisory GHSA-m4x6-gwgp-4pm7 NVD — CVE-2026-11393 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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