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GeezerVison is showing github.com — MrCloudSec - Overview

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Sergio Garcia MrCloudSec

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Security Researcher @BeyondTrust Former Founding Engineer @prowler-cloud
118 followers · 14 following
  • @BeyondTrust
  • Miami, Florida
  • 09:28 (UTC -05:00)
  • in/mrcloudsec
  • @MrCloudSec
  • @mrcloudsec.bsky.social

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MrCloudSec/README.md
Welcome!

Security Researcher at BeyondTrust Phantom Labs

Ex-Founding Engineer at Prowler

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About

Security Researcher focused on AI and Cloud security, with recent work on AWS Bedrock and AgentCore, identity-centric attack paths, and automated threat detection.

Research

  • Package Name to Role Credentials in Code Interpreter: Two RCE CVEs in the AgentCore Python SDK
    Featured in AWS Security Digest #281 · CloudSecList #358

  • Mapping Every Privilege Escalation Path in AWS AgentCore

  • The AWS Bedrock API Keys Security Guide Part 1: Risks, Vulnerabilities, and Attack Techniques

  • The AWS Bedrock API Keys Security Guide Part 2: Detection, Prevention, and Response
    Featured in tl;dr sec #329 · CloudSecList #338

  • Bedrock's New API Keys: Convenience at a Hidden Security Cost
    Featured in AWS Security Digest #223

CVEs

  • CVE-2026-16796 - RCE via pip extras in the AgentCore Python SDK (High, CVSS 8.4)
  • CVE-2026-12530 - RCE via a newline in the AgentCore Python SDK (High, CVSS 8.4)
  • CVE-2026-11931 - World-readable auth token in Kiro IDE (Medium, CVSS 6.8)

Tools

  • bedrock-keys-security - security toolkit for AWS Bedrock API keys: scanning, key forensics, privilege-escalation analysis, and incident response

Talks

  • Black Hat Arsenal USA 2026: Bedrock Keys Security (BKS): Hunting Phantom IAM Users Created by AWS Bedrock API Keys
  • RootedCON Madrid 2026: The Phantom of the Infrastructure: The Invisible Threat in Bedrock API Keys
  • BSides Seattle 2026: The Phantom of the Infrastructure: Investigating the Hidden IAM Risks in Bedrock API Keys
  • RootedCON Madrid 2025: Practical Threat Detection and Remediation in the Cloud
  • Seasides India 2025: Open Source Multi-Cloud Security with Prowler: A Practitioner's Guide
  • fwd:cloudsec NA 2024: Forged in Fire: Forging Multi-Cloud Open Source Swiss-Army Knife
  • DEF CON Cloud Village 2022: Prowler Open Source Cloud Security: A Deep Dive Workshop
  • BSides Las Vegas 2022: Prowler Open Source Cloud Security: A Deep Dive Workshop

Certifications

  • AWS Certified Solutions Architect – Professional
  • AWS Certified Solutions Architect – Associate
  • AWS Certified Security – Specialty
  • AWS Authorized Instructor

Visitor count

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  1. prowler-cloud/prowler prowler-cloud/prowler Public

    This repo hosts Prowler OSS (CLI and Local Server). Prowler is the world’s most widely used open-source cloud security platform that automates security and compliance across any cloud environment f…

    Python 15.2k 2.5k

  2. BeyondTrust/bedrock-keys-security BeyondTrust/bedrock-keys-security Public

    Detect phantom IAM users, decode leaked AWS Bedrock and Claude Platform API keys, and prevent LLMjacking. CLI + SCPs + SIEM detection rules.

    Python 39 3

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