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sachinpatilpsp/README.md

Sachin Patil Portrait

Typing SVG
Whoami

Sachin Patil — AI-Driven Vulnerability Security Researcher

TCS Experience Location Microsoft CVE HackerOne Open Source


Public CVEs

CVE ID Severity Summary
CVE-2026-7461 🔴 HIGH Amazon ECS Agent — Remote Command Injection in container orchestration
CVE-2026-40931 🔴 HIGH Path Traversal + Symlink Poisoning — Filesystem escape via junction abuse
CVE-2026-42043 🔴 HIGH Axios SSRF — Server-Side Request Forgery in axios HTTP client

MSRC

🛡️ Microsoft Security Response Center — Hall of Fame

MSRC April 2026 MSRC May 2026

🔬 Vulnerability Research & Disclosures

🟢 Active MSRC Disclosures (Microsoft)

  • Azure Pipelines AgentArbitrary File Write to RCE Chain

    • Status: Important Severity.
    • Vector: Arbitrary file write vulnerability enabling a Remote Code Execution (RCE) chain.
  • Microsoft EdgeElevation of Privilege (EoP) & Arbitrary File Deletion to SYSTEM

    • Status: Critical Severity.
    • Vector: Leading to Elevation of Privilege (EoP) and arbitrary file deletion via a confused deputy attack.
  • Hall of Fame: https://msrc.microsoft.com/update-guide/acknowledgement/online


Achievements

🏆 Award Platform Year
🛡️ 2x Hall of Fame (consecutive months) Microsoft MSRC Apr–May 2026
🐛 300+ Bug Reports Triaged & Resolved HackerOne 2022–2024
🔴 3x Public CVEs — AWS, NPM,Microsoft MITRE / NVD 2026
2x Security Advisory Credits GitHub Security 2025–26

Publications

Research writeups, CVE analyses & methodology breakdowns — Published on Medium & InfoSec Write-ups

🔴 CVE Technical Write-ups

📄 Bypassing a Security Patch (CVE-2026-24884)

📄 How We Bypassed an Axios Patch (CVE-2026-42043)

📄 Zero-Day to SYSTEM (RCE): Escaping AWS ECS Containers via OS Command Injection CVE-2026–7461

📄 Beyond the Digits: The Emotional Rollercoaster of My First CVE

🧠 AI & Offensive Security Research

📄 Hacking the Brain of AI: Prompt Injection Methodologies in LLMs

📄 Prompt Playbooks: AI Crime-as-a-Service is Booming on the Dark Web

📄 AI Hallucinations Explained — Why They Happen & Can We Reach 0%?

📄 The AI Governance Gap: Why 77% of Companies Use AI but Only 37% Have a Policy

🌐 Threat Intelligence & Industry Analysis

📄 Nation-State Hackers & Geopolitics: Why 64% of Orgs Fear Espionage

📄 The 2027 Prediction: When Cyberattacks Become Fully Autonomous

📄 The CVE Program Crisis: When the Vulnerability Database Becomes Vulnerable

📄 Q-Day is Coming: How Quantum Computing Will Redefine Offensive Security

🎯 Career & Methodology

📄 Bug Bounty vs Pentesting: A Unique Hybrid Methodology for Both Worlds

📄 The 2026 Cybersecurity Certification Trap: Why Paper Credentials Are Failing

Medium InfoSec Writeups


Toolchain

🧰 Penetration Testing & Web Sec

Burp Suite Metasploit Acunetix Nmap Nikto WPScan recon-ng Wireshark

🔍 Vulnerability Management & Triaging

Qualys Nessus Dynatrace HCL AppScan HackerOne

🕵️ Threat Intelligence & Recon

Shodan MITRE Rapid7 Censys

🔬 Binary Analysis & Research

Ghidra WinDbg WinAFL GhidraMCP

🤖 AI-Driven Security Stack

Claude AI Gemini Copilot Ollama PentestGPT Penligent AI

☁️ Cloud & Scripting

Azure AWS Python JavaScript

💻 Operating Systems

Kali Linux Windows

Research Focus:

Research Domain Proficiency Core Focus Areas
Open-Source Research 100% Node.js Libraries, Microsoft & Google OSS, Internet-to-Code
Windows Internals 92% Symlink Poisoning, Directory Junctions, Patch Diffing
Web App Security 88% Logic Flaws, SSRF, LLM Prompt Injection
Cloud (Azure/AWS) 85% ECS Agent Exploits, Container Orchestration
Binary & Fuzzing 80% Ghidra MCP, WinAFL, Reverse Engineering

💼 Professional Experience & Research

🏢 Tata Consultancy Services (TCS)

Security Analyst (Nov 2021 - Present)

  • Vulnerability Triage & Remediation: Managed and resolved 300+ security vulnerabilities reported via HackerOne, ensuring end-to-end remediation by collaborating with engineering teams.
  • Risk Exposure Reduction: Reduced critical risk exposure by 60% through consistent patching and strategic mitigations across web applications and infrastructure.
  • Compliance & Audits: Led infrastructure security audits (internal/external), ensuring compliance with PCI-DSS and GDPR.
  • Security Automation: Automated vulnerability scanning using Qualys and tracked remediation via JIRA, achieving a 40% closure rate for high-risk findings.
  • Stakeholder Reporting & Training: Authored detailed security reports for stakeholders and trained development teams on secure coding practices, specifically focusing on the OWASP Top 10.

🐛 Independent Vulnerability Research & Bug Bounty

☁️ Cloud & Infrastructure Security


📦 Open-Source & Internet-to-Code Analysis


Stats

GitHub Stats GitHub Streak


Snake

github-snake

Links

LinkedIn Twitter MSRC HackerOne Intigriti TryHackMe Medium


Responsible Disclosure Practitioner • AI-Driven Researcher • Open to Collaboration


"Security is not a product, but a process." — Bruce Schneier


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