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AI Built My App. Another AI Found the Security Flaw

Two users send the same training-session id to the API at nearly the same time, each into their own account. Both requests come back 204 No Content . One user's data ends up in the other user's account. That bug was in an app I built with Claude Code, with every security rule I know written into it…

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  1. 2026-11-11 08:35 · DEV Community — AI
    AI Built My App. Another AI Found the Security Flaw

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