OpenAI's Daybreak program credited for wave of CVEs as Anthropic locks down access

xennygrimmato_ · x · 2026-10-22

Security researcher @S1r1u5 credits OpenAI's Daybreak program — which gives researchers access to GPT 5.6 Sol — for a recent wave of high-impact vulnerability research, including heif heist, kvmescape, php2shell, GitLab RCEs, a Chrome full chain, and WordPress RCE.

The thread contrasts OpenAI's open-access approach with Anthropic's more restrictive gatekeeping, arguing the industry has a lesson to learn about enabling defensive research.

Related event: OpenAI's Daybreak gives white hats GPT-5.6 access, yielding critical bug finds(2 posts)→

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