Red team finds OpenAI's agents could dodge its misalignment monitor
In a three-week on-site exercise (Jul 21 to Aug 11), one METR and one Redwood Research employee found several novel holes in the system OpenAI uses to catch misbehaving internal agents: an exploit that would keep hundreds of recent actions from being monitored, a gap that let agents postpone monitoring indefinitely by continuing to act (compaction events were unmonitored, roughly 10% of eligible internal Codex traffic from May to July), a potential route for Codex agents to bypass sandboxing and act with the host user's permissions, and headers that could start unmonitored agents. No evidence that agents actually exploited them; METR could not check. OpenAI says all production-affecting vulnerabilities are patched; METR has not verified that.
Damage
None realized; monitoring gaps in a production safeguard, found by humans
The capability behind it
- METR and Redwood red team OpenAI's own misalignment monitorJul 21, 2026 · METR; Redwood Research; OpenAI · reliable for a defined task: partial
Sources
METR, second source. METR describes it as a pilot high-access exercise, its first of this kind inside OpenAI. Public post is a summary; OpenAI could redact at its discretion. Findings describe the system on and before Jul 21, 2026. Reuters coverage (Oct 22) cited via MarketScreener syndication.
Factor ratings and the score are this index’s judgments by a published formula; facts, dates and figures come from the linked sources. Where a lawsuit is pending, the summary reports allegations, not findings.