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Codex Patches Security Gap That Let Memory Tasks Bypass Sandbox Restrictions

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A merged commit in the Codex repository fixes a security flaw where memory consolidation processes were not inheriting the parent session's sandbox restrictions. Memory consolidation is a background task in which an AI agent summarizes and stores session learnings for future use. Due to the bug, sub-processes spawned during this step could access files, networks, or execution scopes beyond what the parent session permitted. The fix ensures that child tasks can never operate with greater privileges than the session that created them. Maintainers treated the issue as a genuine security hardening gap, making it particularly relevant for users running Codex against untrusted or semi-trusted repositories.

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