Researchers at OpenAI found two vulnerabilities in PHP, a programming language used by about 70% of websites. Cybersecurity experts issued a global alarm after the discovery, and an expert warned that disruption from a critical flaw that has taken websites offline could become more widespread.
WHO:Researchers at OpenAI
WHAT:Researchers at OpenAI found two vulnerabilities in the PHP programming language.
WHEN:Oct 21, 2026
WHERE:Location not specified
WHY:The vulnerabilities were identified using AI.
Reporting from 5 identified publishers across this event arc.
