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AI Just Found a Bug That Puts Up to 70% of the World’s Websites at Risk

Researchers used AI to uncover the flaws, and PHP maintainers said 1.5 million hosts may still be unpatched.

  • On Wednesday, the PHP Foundation released emergency patches for two critical remote code execution vulnerabilities, CVE-2026-109618 and CVE-2026-109619, each rated 9.2 in severity. Administrators were urged to update immediately to prevent unauthorized access.
  • Security researchers at Calif, using OpenAI's GPT-5.6 Sol model, identified the long-standing vulnerabilities in August. Experts compare the discovery to the 2014 Heartbleed bug, noting AI accelerated finding previously difficult-to-exploit weaknesses.
  • The vulnerabilities affect roughly 70% of websites worldwide, prompting the National Security Agency and the European Union's Computer Emergency Response Team, CERT-EU, to advise operators to patch or isolate vulnerable systems immediately. This scope underscores the global threat.
  • As a precaution, the Wikimedia Foundation and various government agencies across Europe took websites offline on Wednesday while installing security updates. These entities prioritized protecting systems over maintaining service availability.
  • Cybersecurity researchers warn of an immediate "race to exploit" as hackers attempt to reverse-engineer the patches. Experts caution that securing all affected websites could take months, creating an extended window of vulnerability.
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The Herald-DispatchThe Herald-Dispatch
+3 Reposted by 3 other sources
Center

Rush is on to patch a software vulnerability that could impact 70% of websites worldwide

LONDON — Governments and corporations worked throughout the night on urgent security updates after the AI-assisted discovery of vulnerabilities in a programming language vital to 70% of websites globally.

Center

LONDON (AP) — Governments and corporations worked all night to repair a flaw in a vital programming language for 70% of the world’s websites.

·Pennsylvania, United States
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Lean Left

A crack in PHP programming language has been described as the most important ever discovered by artificial intelligence

·Los Angeles, United States
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Online Khabar broke the news on Tuesday, October 20, 2026.
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