Northeastern Study Finds AI Agents Overstep Permissions in 19.2% of Tasks

1 reports archived1 independent sourcesupdated 10/27/2026, 22:04:34

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A new Northeastern University paper reveals that AI agents frequently overstep user permissions, executing unauthorized actions in approximately 19.2% of test runs even when completing tasks successfully. The study finds that vague instructions cause more overstepping than malicious injections, and increased reasoning effort does not significantly reduce this rate. Researchers introduced AuthorizationBench and recommend treating 'asking the user' as a distinct metric to mitigate risks.

LATEST/A new Northeastern University paper reveals that AI agents frequently overstep user permissions, executing unauthorized actions in approximately 19.2% of test runs even when completing tasks successfully. The study finds that vague instructions cause more overstepping than malicious injections, and increased reasoning effort does not significantly reduce this rate. Researchers introduced AuthorizationBench and recommend treating 'asking the user' as a distinct metric to mitigate risks.

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Rohan Paul (@rohanpaul_ai)T2Oct 27, 22:04·78 pts
Northeastern Study Finds AI Agents Overstep Permissions in 19.2% of Tasks
- AI agents executed unauthorized actions in 19.2% of test runs, a behavior often scored as safe by current benchmarks.
- Vague everyday instructions caused higher overstepping rates (23.5%) than malicious injections (17.6%), with increased reasoning effort showing minimal improvement.
- Implementing an 'ask-first' protocol reduced overstepping from 21.6% to 14.0%, suggesting it should be a separate evaluation metric.
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