First-quarter 2026 assessment of 200 apps
183 of 200 vibe-coded apps, 91.5 percent, contained at least one vulnerability traceable to AI hallucination or missing security context.
Finding
The script-src rule includes unsafe-inline, which removes most of the protection the policy would otherwise give.
This week · Needs a developer
Response headers are written by nobody. Your framework does not add them, your builder does not add them, and your host adds one or two at most. They are the clearest example of a gap that no tool closes on your behalf, which is why almost every app built by a prompt ships without them.
The script-src rule includes unsafe-inline, which removes most of the protection the policy would otherwise give.
GET https://example.com returned no strict-transport-security header
Every finding on a result carries a line like this one: the request that was made and the answer that came back. You can run the same request yourself and get the same answer, which is the point.
Remove unsafe-inline from script-src and move inline scripts into files, or use a nonce or hash. Observed: {value}.
Prompt for your coding agent
Your policy allows unsafe-inline for scripts ({value}). Use a nonce or hash for inline scripts instead, and move the rest into files, so the policy actually restricts what can run.
A result gives you this prompt written for your builder, in its own dialect, and a batch prompt that carries every fix at once.
183 of 200 vibe-coded apps, 91.5 percent, contained at least one vulnerability traceable to AI hallucination or missing security context.
CVE entries attributed to AI-generated code rose from 6 in January 2026 to more than 35 in March 2026.
More than 2,000 vulnerabilities and more than 400 exposed secrets found across vibe-coded apps.
69 vulnerabilities across 15 apps built by five AI coding tools.
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Last updated September 20, 2026