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PHP2Shell vulnerabilities trigger global cybersecurity alert
Two critical vulnerabilities in the PHP programming language, collectively known as ‘PHP2Shell’ (CVE-2026-109618 and CVE-2026-109619), have prompted a global cybersecurity scramble. The flaws, which allow for unauthenticated remote code execution (RCE), were identified with the assistance of artificial intelligence, including OpenAI’s GPT-5.6 Sol and Google’s Gemini.
Following the announcement on October 21, 2026, numerous governments and organizations worldwide took preemptive measures to take websites offline. Affected services include government portals, hospitals, schools, and infrastructure such as the Port of Rotterdam. Countries reporting service interruptions or precautionary shutdowns include Germany, France, Belgium, Finland, the Netherlands, the United Kingdom, Canada, and the United States.
Security firms such as Wiz and Calif, alongside OpenAI, led the discovery efforts. Cloudflare reported millions of exploitation attempts following the disclosure, while Amazon’s MadPot honeynet observed exploitation attempts as early as October 17, four days before the public announcement. The vulnerabilities carry a CVSS v4.0 severity score of 9.2 out of 10. The PHP development team released emergency patches on October 21 for several versions, including 8.1.x, 8.2.x, 8.3.x, 8.4.x, and 8.5.x.
Entities
ACSC · Amazon · Australian Cyber Security Centre · BSI · Benjamin Harris · CERT-EU · Calif · Cloudflare · FBI · Federal Bureau of Investigation · Hacker News · Huntress
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 37 SOURCES] The two vulnerabilities have a CVSS v4.0 rating of 9.2. unwire.pro · lokaleomroepzeewolde.nl · kryptomagazin.cz · www.miperiodico.com.ar · obalaplus.si · +1 more
- [● 37 SOURCES] The vulnerabilities are tracked as CVE-2026-109618 and CVE-2026-109619. www.44malatyahaber.com · unwire.pro · forbesliberia.com · kryptomagazin.cz · www.miperiodico.com.ar · +2 more
- [● 11 SOURCES] The vulnerabilities are believed to affect PHP versions 5, 6, 7, and 8. forbesliberia.com · unwire.pro
- [● 39 SOURCES] The flaws are remote code execution (RCE) vulnerabilities. unwire.pro · forbesliberia.com · lokaleomroepzeewolde.nl · kryptomagazin.cz · www.miperiodico.com.ar · +2 more
- [● 9 SOURCES] Security updates are expected to target PHP 8.2, 8.3, 8.4, and 8.5. forbesliberia.com
- [● 15 SOURCES] An exploit tool named ‘PHP2Shell’ has been observed. unwire.pro · forbesliberia.com · trn.mk
- [● 17 SOURCES] Details of the vulnerabilities were leaked ahead of the scheduled disclosure. unwire.pro · forbesliberia.com
- [● 20 SOURCES] PHP is releasing security updates on October 21 at 14:00 UTC. unwire.pro · forbesliberia.com · kryptomagazin.cz
- [● 11 SOURCES] Dutch government websites, including DigiD and MijnOverheid, were taken offline as a precaution. 1zwolle.nl · lokaleomroepzeewolde.nl · obalaplus.si · www.guncelegitim.com · bahamasspectator.com
- [DISPUTED] Only PHP versions 8.2 through 8.5 will receive official security patches.
- [● 10 SOURCES] Cloudflare reported seeing initial exploitation attempts. forbesliberia.com · www.telanganatribune.com · maghrebemergent.news · dailymeezan.com · infoenn.com · +1 more
- [● 5 SOURCES] The Turkish Cybersecurity Presidency has initiated national-scale security scans.