OpenAI Codex Still Vulnerable to Sensitive File Exposure Issue
openai
| Source: HN | Original article
OpenAI Codex issue remains unresolved, affecting sensitive file exclusion.
The issue of excluding sensitive files from OpenAI Codex remains unresolved. This problem was first raised in August 2025, with a proposed solution involving a Rust implementation, but a comparable feature has yet to be implemented. The issue is significant because it affects the security and privacy of users' data, particularly when using the Codex CLI tool, which can upload sensitive files such as those containing credentials or secrets.
Why it matters is that new AI models like those from OpenAI continually reset the boundaries of what is possible in terms of capability and price-performance. As a result, development teams must re-evaluate their projects and consider what they can build with the latest technology. However, without a reliable way to exclude sensitive files, teams may be hesitant to adopt OpenAI Codex, limiting its potential impact.
What to watch next is how OpenAI addresses this issue, potentially through the implementation of a feature like a ".codexignore" file, similar to ".gitignore," which would allow users to specify files or directories that Codex should not access. Alternatively, OpenAI may provide guidance on using existing solutions, such as containers or Unix permissions, to restrict access to sensitive files.
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