ChatGPT File Download Flow Vulnerability Could Be Abused to Access System Files

Cybersecuritynews •Guru Baran • July 2, 2026

A proof-of-concept vulnerability chain in ChatGPT that combined a guardrail bypass with a path traversal flaw, potentially allowing attackers to access restricted system files such as /etc/passwd through the platform’s file download mechanism. According to Security researcher zer0dac, OpenAI has since remediated the issue by redesigning the URL download flow. The exploitation chain involved four […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

ChatGPT Vulnerability Allows Access to System Files via Download Mechanism A recently discovered vulnerability in ChatGPT's file download flow allowed for a guardrail bypass and path traversal, enabling potential access to sensitive system files like /etc/passwd. Security researcher zer0dac reported that this proof-of-concept vulnerability chain could be exploited to access restricted files. OpenAI has since patched the vulnerability by redesigning the URL download flow. The incident highlights risks associated with logic flaws in large language model workflows, particularly in file handling and access controls. The vulnerability was confirmed and remediated shortly after its discovery, indicating a proactive response from OpenAI. Users of ChatGPT were at risk during the brief window before the patch was applied. The incident serves as a reminder of the importance of robust security measures in AI systems. 2 sources 58

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ChatGPT File Download Flow Vulnerability Could Be Abused to Access System Files

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Extracted Entities

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