--- title: Flaws in Google APK for Python Unlock Agent-to-Agent Attack description: Researchers at Pillar Security discovered vulnerabilities in Google's open source Agent Development Kit (ADK) for Python that enabled agent-to-agent privilege... canonical: https://daily.dev/posts/flaws-in-google-apk-for-python-unlock-agent-to-agent-attack-pab6flf7s twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Flaws in Google APK for Python Unlock Agent-to-Agent Attack | daily.dev og:description: Researchers at Pillar Security discovered vulnerabilities in Google's open source Agent Development Kit (ADK) for Python that enabled agent-to-agent privilege... og:url: https://daily.dev/posts/flaws-in-google-apk-for-python-unlock-agent-to-agent-attack-pab6flf7s og:image: https://api.daily.dev/og/posts/pAB6FlF7S.png og:image:alt: Flaws in Google APK for Python Unlock Agent-to-Agent Attack og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Flaws in Google APK for Python Unlock Agent-to-Agent Attack **[Dark Reading](https://daily.dev/sources/dr)** · 5 min read · 0 upvotes · 0 comments ## Summary Researchers at Pillar Security discovered vulnerabilities in Google's open source Agent Development Kit (ADK) for Python that enabled agent-to-agent privilege escalation attacks. A low-privileged, public-facing AI agent reviewing GitHub pull requests could be manipulated via prompt injection to trigger a higher-privileged Gemini-based agent, potentially allowing malicious code execution in CI/CD pipelines and compromising the software supply chain. Google remediated the flaws in July 2025. The findings highlight a new attack surface: the trust boundaries and delegation chains between AI agents in multi-agent systems, which traditional threat models focused on individual components fail to address. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Cybersecurity Researchers Uncover Flaw in Google AI Coding Tool](https://daily.dev/posts/cybersecurity-researchers-uncover-flaw-in-google-ai-coding-tool-38fhs0zr4) · DevOps.com · 1 upvotes · 0 comments - [Hands-on with the Google Agent Development Kit](https://daily.dev/posts/hands-on-with-the-google-agent-development-kit-zcvlgqadp) · InfoWorld · 1 upvotes · 0 comments - [Gemini Trifecta: AI autonomy without guardrails opens new attack surface](https://daily.dev/posts/gemini-trifecta-ai-autonomy-without-guardrails-opens-new-attack-surface-zayoyrcww) · CSO Online · 0 upvotes · 0 comments --- Tags: [#security](https://daily.dev/tags/security), [#ai-agents](https://daily.dev/tags/ai-agents), [#prompt-injection](https://daily.dev/tags/prompt-injection) [View this post on daily.dev](https://daily.dev/posts/flaws-in-google-apk-for-python-unlock-agent-to-agent-attack-pab6flf7s) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Flaws in Google APK for Python Unlock Agent-to-Agent Attack","url":"https://daily.dev/posts/flaws-in-google-apk-for-python-unlock-agent-to-agent-attack-pab6flf7s","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/flaws-in-google-apk-for-python-unlock-agent-to-agent-attack-pab6flf7s"},"datePublished":"2026-08-05T18:11:53.401Z","dateModified":"2026-08-05T19:32:27.555Z","description":"Researchers at Pillar Security discovered vulnerabilities in Google's open source Agent Development Kit (ADK) for Python that enabled agent-to-agent privilege...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2511ad51ff437f2a46bca65c07fedace?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2511ad51ff437f2a46bca65c07fedace?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Dark Reading","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Dark Reading","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/dr","url":"https://daily.dev/sources/dr"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/flaws-in-google-apk-for-python-unlock-agent-to-agent-attack-pab6flf7s","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"security,ai-agents,prompt-injection","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Dark Reading","item":"https://daily.dev/sources/dr"},{"@type":"ListItem","position":3,"name":"Flaws in Google APK for Python Unlock Agent-to-Agent Attack"}]} ```