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On AI Lounge since Nov 2026

Serhii Shunko

@sshunkoMember #4,755DeveloperL2
Independent Security Researcher, Independent
Security research on C/C++ protocol parsers and AI-agent/MCP tooling; author of mcp-ssrf-auditor
Open to work
Dnipro, Ukraine IndependentGitHub ★ 6XLinkedIn
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Pinned projects

All 3 projects
c-bounds-audit-framework
Repo · Python
▲ 0
Static checks for pointer advancement and length handling in C/C++ network and protocol parsers: integer overflow, buffer over-read and over-write.
C/C++Static analysisMemory safety
mcp-ssrf-auditor
Repo · Python
▲ 0
Static checks for MCP server configs and tool schemas: SSRF filter bypasses and path traversal. SARIF output for CI.
MCPSecuritySSRF
protobuf-bounds-auditor
Repo · Python · libprotobuf-mutator
▲ 0
Analyzer for .proto schemas: finds unbounded fields and unchecked recursion depth, then generates libprotobuf-mutator fuzzing harnesses. SARIF output. DOI 10.5281/zenodo.23641037.
ProtobufFuzzingMemory safety

About

I find and report security bugs in open-source software, mostly in two areas.

C/C++ protocol and media parsers: length fields taken on trust, integer underflow, out-of-bounds reads and writes. Examples: RTCP handling in SRS, BACnet stack, DCE/RPC in nDPI, dictionary training in zxc.

AI-agent and MCP tooling: local HTTP servers without Host/Origin checks, SSRF filters, path containment, temp-file handling. Examples: electerm, nektos/act, github/gh-aw, Salesforce B2C DX MCP server, kubernetes-mcp-server.

Reports go privately through each project's own channel, with a local reproducer and a proposed fix. The maintainers decide when to publish.

Tools I maintain: mcp-ssrf-auditor, protobuf-bounds-auditor, c-bounds-audit-framework.

GitHub: ccsimplyspolit · HackerOne and Bugcrowd: sshunko

Categories

CybersecurityAI Governance & SafetyDevTools

Skills

AI Evals & SafetyPythonJavaScript & TypeScriptC & C++Security EngineeringHardware & EmbeddedOpen Source

Stack

ClaudeKimiGeminiChatGPT4 tools

Experience

S
Independent Security Researcher · Self-employed
Oct 2026 – PresentCurrent

GitHub activity

★ 6 stars · 7,190 contributions in the last year · @ccsimplyspolit ↗
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