AI in Your Browser, Data on Your Server: What Could Go Wrong? A lot, it turns out. And some of it already has.
I received a newsletter today about a Chrome vulnerability involving Gemini. I clicked it, read it, and read again — because the Gemini story was just the headline. Underneath was a pattern every SQL Server shop should understand now, before it becomes a post-incident RCA.
The Gemini Story (Start Here)
In January 2026, Google quietly patched a high-severity Chrome vulnerability — CVE-2026-0628 — affecting Chrome's 'Live in Chrome' panel, which runs Gemini as a privileged browser component, not a regular tab. That distinction matters. The panel has elevated access to local files, screenshots, camera, and microphone. Those are features Gemini needs to do its job. They're also exactly what a hacker is looking for.
Researchers at Palo Alto Networks Unit 42 found that a Chrome extension with only basic permissions could inject JavaScript into that panel and inherit all of those elevated privileges. Camera on. Mic on. Local files open. The trigger wasn't a suspicious download or a phishing form — just opening the Gemini panel was enough.
The technical root cause: when gemini.google.com/app loads in a regular tab, extensions can interact with it but gain nothing special. When the same URL loads inside the Gemini browser panel, Chrome hooks it with browser-level capabilities. This was the exploit, and it's been named GlicJack (short for Gemini Live in Chrome hijack).
Google patched it in Chrome 143.0.7499.192/193. If you're on a current version, you're fine. If your org is on a managed Chrome deployment with slow update cycles, check now.
That's Gemini. Now Let's Talk Copilot.
If your shop runs Microsoft 365 — and many do — you have more to read.
Reprompt (CVE-2025-64671): Discovered in January 2026, this one let an attacker hijack a Microsoft Copilot Personal session with a single phishing link. The malicious prompt was embedded in a URL parameter. Nothing else needed. Copilot's automatic execution did the rest. The attacker's session persisted, forming a covert channel for data exfiltration.
Covert exfiltration. The name is Bond, ma'am. 😆
Patched on January 2026 Patch Tuesday. Source: Ars Technica — A single click mounted a covert, multistage attack against Copilot
EchoLeak (CVE-2025-32711): This one's ugly. A zero-click vulnerability in Microsoft 365 Copilot. An attacker sent a crafted email. Copilot read it, got injected, accessed internal files, and exfiltrated data — all from the user just having Copilot open. It bypassed Microsoft's own prompt injection classifiers and link redaction, and they issued emergency patches. The First Real-World Zero-Click Prompt Injection Exploit in a Production LLM System
Copilot Studio prompt injection: Tenable AI Research demonstrated that an agent built in Microsoft's no-code Copilot Studio can be manipulated with a plain-text prompt into returning multiple customer records or executing unauthorized transactions. No exploit kit. No elevated permissions. Just a carefully worded request. Details: tenable.com — Copilot Studio Security: 3 Risks CISOs Must Address Now
So What Does This Have to Do With SQL Server?
An awful lot.
Think about what's on your clipboard when you're working a problem and decide to ask ChatGPT or Copilot for help: execution plans, stored procedure logic, object names, row counts, even connection strings. According to the LayerX Enterprise AI & SaaS Data Security Report 2025, 77% of employees paste data into GenAI prompts — and 40% of file uploads include sensitive personal or financial data.
That's not a theoretical risk. That's just a Tuesday.
Now layer on the vulnerabilities above. If a malicious extension is running in Chrome while the Gemini panel is open — or if Copilot has been fed a crafted prompt through an email — the AI assistant that's 'helping' you tune a query may also be reading local files or operating inside a hijacked session. Even the data you didn't paste can still be exposed through what the AI can see.
The Structural Problem
GlicJack, Reprompt, and EchoLeak aren't random bugs. They're symptoms of the same design tension: AI assistants need broad access to be useful, and broad access is exactly what attackers are looking for.
OWASP ranked indirect prompt injection — the technique behind EchoLeak and Reprompt — as the #1 threat to LLM applications in 2025. The attack surface keeps growing from there.
Copilot in SSMS. Copilot in Azure Data Studio. AI-assisted query generation in SQL Server 2025. These tools are legitimately useful. They're also new vectors.
What To Do Right Now
2. Audit your Chrome extensions. The Gemini exploit required only basic extension permissions. Remove anything you can't identify and actively justify.
3. Know what Copilot can reach. Microsoft 365 Copilot inherits the permissions of the user running it. Over-permissioned accounts mean over-permissioned AI. Know what it can reach before it gets there.
4. Treat AI input like a query parameter. Anything you paste into an AI tool is potentially logged, stored, or exposed. Scrub identifiable schema details and connection information before handing a problem to an AI assistant — the same instinct you'd apply before posting to a public forum.
5. Watch the Copilot Studio sprawl. If business teams are building agents on top of your SQL Server data, find out. Agents built without IT oversight inherit whatever permissions their creator has and are prompt-injectable by default. Very. Big. Exposure.
Bottom Line
The Gemini CVE is already patched. The habits that expose your SQL Server data may not be.
AI tools that touch your query environment are useful enough that people will use them regardless of policy. The job isn't to ban them. It's to understand the attack surface and manage it deliberately. These vulnerabilities aren't edge cases cooked up in a lab. They shipped in production, in tools your team is probably using right now.
Patch Chrome. Audit extensions. Know what Copilot can see. And maybe think twice before pasting that execution plan.
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