Dynamic Deception: When Pedestrians Team Up to Fool Autonomous Cars

Fuente: arXiv
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Autores principales: Tehrani, Masoud Jamshidiyan, Gabriel, Marco, Kim, Jinhan, Tonella, Paolo
Formato: Preprint
Publicado: 2026
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author Tehrani, Masoud Jamshidiyan
Gabriel, Marco
Kim, Jinhan
Tonella, Paolo
author_facet Tehrani, Masoud Jamshidiyan
Gabriel, Marco
Kim, Jinhan
Tonella, Paolo
contents Many adversarial attacks on autonomous-driving perception models fail to cause system-level failures once deployed in a full driving stack. The main reason for such ineffectiveness is that once deployed in a system (e.g., within a simulator), attacks tend to be spatially or temporally short-lived, due to the vehicle's dynamics, hence rarely influencing the vehicle behaviour. In this paper, we address both limitations by introducing a system-level attack in which multiple dynamic elements (e.g., two pedestrians) carry adversarial patches (e.g., on cloths) and jointly amplify their effect through coordination and motion. We evaluate our attacks in the CARLA simulator using a state-of-the-art autonomous driving agent. At the system level, single-pedestrian attacks fail in all runs (out of 10), while dynamic collusion by two pedestrians induces full vehicle stops in up to 50\% of runs, with static collusion yielding no successful attack at all. These results show that system-level failures arise only when adversarial signals persist over time and are amplified through coordinated actors, exposing a gap between model-level robustness and end-to-end safety.
format Preprint
id arxiv_https___arxiv_org_abs_2602_18079
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Dynamic Deception: When Pedestrians Team Up to Fool Autonomous Cars
Tehrani, Masoud Jamshidiyan
Gabriel, Marco
Kim, Jinhan
Tonella, Paolo
Cryptography and Security
Robotics
Many adversarial attacks on autonomous-driving perception models fail to cause system-level failures once deployed in a full driving stack. The main reason for such ineffectiveness is that once deployed in a system (e.g., within a simulator), attacks tend to be spatially or temporally short-lived, due to the vehicle's dynamics, hence rarely influencing the vehicle behaviour. In this paper, we address both limitations by introducing a system-level attack in which multiple dynamic elements (e.g., two pedestrians) carry adversarial patches (e.g., on cloths) and jointly amplify their effect through coordination and motion. We evaluate our attacks in the CARLA simulator using a state-of-the-art autonomous driving agent. At the system level, single-pedestrian attacks fail in all runs (out of 10), while dynamic collusion by two pedestrians induces full vehicle stops in up to 50\% of runs, with static collusion yielding no successful attack at all. These results show that system-level failures arise only when adversarial signals persist over time and are amplified through coordinated actors, exposing a gap between model-level robustness and end-to-end safety.
title Dynamic Deception: When Pedestrians Team Up to Fool Autonomous Cars
topic Cryptography and Security
Robotics
url https://arxiv.org/abs/2602.18079