← Back to PeopleSKResearcherSina KheirkhahSecurity Researcher at Summoning TeamDemonstrated an OpenAI Codex zero-day vulnerability for $20,000 at Pwn2Own Berlin 2026.1Mentions1Articles1OutletsArticlesMost recent firstMentioned InReferenced in coveragePwn2Own Berlin 2026 Debuts AI Category for First Time — Cursor, OpenAI Codex, and LiteLLM All Fall on Days One and Two as Competition Sells Out in 19-Year FirstBleepingComputercautiousMay 16, 2026“Demonstrated an OpenAI Codex zero-day vulnerability for $20,000 at Pwn2Own Berlin 2026.”