OpenAI's Guardrails Safety Framework Vulnerable to Prompt Injection Attacks, Experts Warn

October 14, 2025
OpenAI's Guardrails Safety Framework Vulnerable to Prompt Injection Attacks, Experts Warn
  • This ongoing arms race between AI developers and attackers highlights the critical need for cautious interactions with AI chatbots to safeguard sensitive information.

  • Researchers demonstrated that both the response-generating models and safety checkers are vulnerable to manipulation, especially when the same model is used for multiple functions, leading to the 'same model, different hat' problem.

  • Security experts from Palo Alto Networks found that many AI platforms offer limited protection against jailbreak attempts, with some blocking less than half of such attacks.

  • OpenAI warned in December 2023 that guardrail systems using LLMs share vulnerabilities with the base models, emphasizing the difficulty in creating foolproof safeguards.

  • In one test, researchers manipulated the system's confidence in a jailbreak from 95% to bypass safety checks, exposing flaws in current safety measures.

  • Recent research reveals that OpenAI's Guardrails safety framework, introduced with its AgentKit toolset, can be bypassed through prompt injection attacks, raising significant security concerns.

  • Previous studies have shown that jailbreak techniques, such as role-playing and policy puppetry, can make large language models (LLMs) perform unwanted actions across various platforms.

  • Past incidents like the ShadowLeak exploit, which involved tricking ChatGPT into leaking user data via disguised prompt injections, underscore the ongoing security risks and the need for more robust measures.

  • OpenAI's Guardrails is an open-source, modular safety layer employing LLM-based judges to prevent harmful behaviors, including data leaks and jailbreaks.

  • The vulnerability to indirect prompt injections raises concerns about creating a false sense of security, especially as organizations increasingly depend on LLMs for critical tasks.

  • Despite protections, researchers from HiddenLayer successfully bypassed Guardrails using prompt injection techniques that manipulate the AI's analysis of user requests.

  • HiddenLayer demonstrated that AI security models based on LLMs can be fooled with prompt injections, which lower confidence scores and bypass safeguards.

  • OpenAI's Guardrails includes a prompt injection detector, but it has also been defeated by similar attack techniques, highlighting ongoing security challenges.

Summary based on 2 sources


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Sources

Researchers break OpenAI guardrails

Malwarebytes • Oct 13, 2025

Researchers break OpenAI guardrails

OpenAI’s Guardrails Can Be Bypassed by Simple Prompt Injection Attack

Hackread - Latest Cybersecurity, Hacking News, Tech, AI & Crypto • Oct 13, 2025

OpenAI’s Guardrails Can Be Bypassed by Simple Prompt Injection Attack

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