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Curated security research, vulnerabilities, advisories and tools for practitioners.

Hacker spotlight: Ruikai Peng

bugcrowd.com | blog | #bug-bounty | #rce | #black-hat | #cve | #hacker-spotlight | #ml-security | #tensorflow
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Summary

At 15, Ruikai Peng has earned 25 CVEs, reported RCE bugs in TensorFlow, Transformers, and Llama.cpp, and become the youngest Black Hat USA speaker while blogging for 20k monthly readers.
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Related coverage

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PHP2Shell is a pair of critical remote code execution (RCE) vulnerabilities in PHP, CVE-2026-109618 and CVE-2026-109619. Both score 9.2 on CVSS v4.0, and either one can let an unauthenticated attacker run code on a server that handles PHP requests. Cloudflare reports that exploitation has started.
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open62541: Integer Overflow → Heap Overflow → RCE.
Original research: how a 16 bit size field overflow in open62541's custom DataType machinery lets a malicious OPC UA server corrupt a connecting client's heap, up to remote code execution. CVE-2026-116014, CVSS 9.2. Root cause, networked PoC, and the official fix. By BUG|PWN.
research · github.com
php2shell: Pure HTTP Full-Chain RCE and ASLR Bypass on Stock PHP 8.4 Configurations
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