# TRACO: Enhancing Visual Task-Redirection Attacks on Vision-Language-Action Models via Closed-Loop Optimization

- Source: arXiv cs.RO
- Published: 2026-10-19T04:00:00.000Z
- RoboHot: https://robohot.news/en/items/qo1tqhg3p51347vclpvnavdvw
- Original: https://arxiv.org/abs/2610.23566

## Summary

The TRACO framework enhances targeted visual attacks on vision-language-action (VLA) models through closed-loop optimization. Its Execution-Driven Supervision rebuilds supervision signals based on the states actually reached under attack, while Progress-Guided Selection concentrates updates where task progress stalls and maintains supervision of prior behavior. Experiments across multiple VLA models and simulated environments show that TRACO improves task redirection success rates, highlighting the security implications of closed-loop attack optimization.