A Systematization of Security Vulnerabilities in Computer Use Agents

Fuente: arXiv
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Hauptverfasser: Jones, Daniel, Severi, Giorgio, Pouliot, Martin, Lopez, Gary, de Gruyter, Joris, Zanella-Beguelin, Santiago, Song, Justin, Bullwinkel, Blake, Cortez, Pamela, Minnich, Amanda
Format: Preprint
Veröffentlicht: 2025
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author Jones, Daniel
Severi, Giorgio
Pouliot, Martin
Lopez, Gary
de Gruyter, Joris
Zanella-Beguelin, Santiago
Song, Justin
Bullwinkel, Blake
Cortez, Pamela
Minnich, Amanda
author_facet Jones, Daniel
Severi, Giorgio
Pouliot, Martin
Lopez, Gary
de Gruyter, Joris
Zanella-Beguelin, Santiago
Song, Justin
Bullwinkel, Blake
Cortez, Pamela
Minnich, Amanda
contents Computer Use Agents (CUAs), autonomous systems that interact with software interfaces via browsers or virtual machines, are rapidly being deployed in consumer and enterprise environments. These agents introduce novel attack surfaces and trust boundaries that are not captured by traditional threat models. Despite their growing capabilities, the security boundaries of CUAs remain poorly understood. In this paper, we conduct a systematic threat analysis and testing of real-world CUAs under adversarial conditions. We identify seven classes of risks unique to the CUA paradigm, and analyze three concrete exploit scenarios in depth: (1) clickjacking via visual overlays that mislead interface-level reasoning, (2) indirect prompt injection that enables Remote Code Execution (RCE) through chained tool use, and (3) CoT exposure attacks that manipulate implicit interface framing to hijack multi-step reasoning. These case studies reveal deeper architectural flaws across current CUA implementations. Namely, a lack of input provenance tracking, weak interface-action binding, and insufficient control over agent memory and delegation. We conclude by proposing a CUA-specific security evaluation framework and design principles for safe deployment in adversarial and high-stakes settings.
format Preprint
id arxiv_https___arxiv_org_abs_2507_05445
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Systematization of Security Vulnerabilities in Computer Use Agents
Jones, Daniel
Severi, Giorgio
Pouliot, Martin
Lopez, Gary
de Gruyter, Joris
Zanella-Beguelin, Santiago
Song, Justin
Bullwinkel, Blake
Cortez, Pamela
Minnich, Amanda
Cryptography and Security
Computer Use Agents (CUAs), autonomous systems that interact with software interfaces via browsers or virtual machines, are rapidly being deployed in consumer and enterprise environments. These agents introduce novel attack surfaces and trust boundaries that are not captured by traditional threat models. Despite their growing capabilities, the security boundaries of CUAs remain poorly understood. In this paper, we conduct a systematic threat analysis and testing of real-world CUAs under adversarial conditions. We identify seven classes of risks unique to the CUA paradigm, and analyze three concrete exploit scenarios in depth: (1) clickjacking via visual overlays that mislead interface-level reasoning, (2) indirect prompt injection that enables Remote Code Execution (RCE) through chained tool use, and (3) CoT exposure attacks that manipulate implicit interface framing to hijack multi-step reasoning. These case studies reveal deeper architectural flaws across current CUA implementations. Namely, a lack of input provenance tracking, weak interface-action binding, and insufficient control over agent memory and delegation. We conclude by proposing a CUA-specific security evaluation framework and design principles for safe deployment in adversarial and high-stakes settings.
title A Systematization of Security Vulnerabilities in Computer Use Agents
topic Cryptography and Security
url https://arxiv.org/abs/2507.05445