GPT-5.3-Codex profile

    GPT-5.3-Codex — security & risk dashboard

    Known weaknesses, safety and security advisories, and documented real-world incidents for GPT-5.3-Codex — collected automatically and re-checked every few hours, so teams building on it can see what to design around.

    Last checked 25 Oct 2026

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    Known flaws

    4

    Security risks

    4

    Real-world incidents

    0

    Advisories logged

    0

    Security, safety & abuse risks

    • Advanced cybersecurity capabilities could assist harmful activity; OpenAI applies safeguards associated with its High cybersecurity capability classification.
    • Malicious instructions in repositories, documents or tool output can attempt to redirect an agent away from its authorized task.
    • Broad tool permissions can amplify the consequences of incorrect or maliciously redirected actions.
    • Overreliance on generated code can allow correctness or security defects to reach production.

    Known flaws & limitations

    • Software-engineering evaluations show incomplete task success; generated changes still require testing and review.
    • Computer-use performance remains imperfect, limiting dependable unattended operation.
    • Agentic workflows remain susceptible to malicious instructions embedded in external content.
    • Cybersecurity safeguards can restrict requests involving sensitive or dual-use security work.

    Security advisories & risk updates

    No risk advisories logged since this profile started being tracked. New ones appear here automatically.

    What this means if you are building on it

    • Unattended production changes without tests, approval gates or rollback mechanisms.
    • Security-critical code deployment without independent correctness and security review.
    • Agents processing untrusted content while holding unrestricted credentials or destructive permissions.

    Everything here comes from published documentation, advisories and reporting, with links to the original sources. It is not a complete vulnerability database — always check the provider's own security notices before shipping.