Researchers Reached OpenAI's Private Monorepo via Discourse Forum Bug, Earned $6,500 Bounty

ChrisGPT · x · 2026-09-18

Three researchers found a vulnerability in the Discourse system hosting OpenAI's community forums, obtained auth tokens that also worked on an employee's ChatGPT/GitHub access, and reached OpenAI's private monorepo. They stopped short of sensitive material, proved access with a harmless pull request, responsibly disclosed, and were paid $6,500. No evidence model weights were accessed.

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