A.I. Discovered a Critical Vulnerability in PHP, a Coding Language Behind Many Websites

Security researchers using OpenAI’s advanced artificial intelligence models unearthed major bugs in a piece of software used widely across the internet, setting off fears around the world about significant disruptions for consumers and businesses. The Trump administration and some governments in Europe and Asia warned that all organizations that rely on the software, which is known as PHP, should immediately install updates released Wednesday to patch the flaws. By some estimates, about 70 percent of all websites and web applications use the software.

Published 23-Oct-2026 18:05 UTC · First seen 22-Oct-2026 22:11 UTC

Sources

• The New York Times · 21-Oct-2026