Modern Cyber with Jeremy Snyder30 Okt 2025

This Week in AI Security - 30th October 2025

In this week's episode, Jeremy focuses on two rapidly evolving areas of AI security: the APIs that empower AI services and the risks emerging from new AI Browsers.

We analyze two stories highlighting the exposure of secrets and sensitive data:

API Insecurity: A path traversal vulnerability was discovered in the APIs powering an MCP server hosting service, leading to the exposure of 3,000 API keys. This reinforces the lesson that foundational security mistakes, such as inadequate secret management and unpatched vulnerabilities, are being repeated in the rush to launch new AI services.

CVE in Google Cloud Vertex AI: We discuss a confirmed CVE in Google's Vertex AI service APIs. This vulnerability briefly allowed requests made by one customer's application to be routed and responded to another customer's account, risking exposure of sensitive corporate data and intellectual property in a multi-tenant SaaS environment.

Finally, we explore the risks of AI Browsers (like the ChatGPT Atlas or Perplexity Comet browser) and AI Sidebars. These agents, designed to act with agency on a user's behalf (e.g., price comparison), are vulnerable to techniques that can reveal sensitive PII and user credentials to malicious websites, or unwittingly download malware.

Episode Links

https://blog.gitguardian.com/breaking-mcp-server-hosting/https://cloud.google.com/support/bulletins#gcp-2025-059

https://fortune.com/2025/10/23/cybersecurity-vulnerabilities-openai-chatgpt-atlas-ai-browser-leak-user-data-malware-prompt-injection/

https://securityboulevard.com/2025/10/news-alert-squarex-reveals-new-browser-threat-ai-sidebars-cloned-to-exploit-user-trust/

https://techcrunch.com/2025/10/25/the-glaring-security-risks-with-ai-browser-agents/

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