On October 20, 2026, the PHP development team announced that there are two critical vulnerabilities in PHP, and that a patched version is scheduled to be released on October 21, 2026 at 23:00 (Japan Time).
Is Teachme Process affected by this vulnerability?
No, there is no impact.
Since neither Teachme Process nor any other service in the Teachme series uses PHP, there is no impact from this vulnerability.
[Reference Information]
▼[Advance Notice] Upcoming PHP Security Release (External Site)
https://www.ipa.go.jp/security/security-alert/2026/pre-alert20261021.html
▼Upcoming Critical PHP Security Release (External Site)
https://www.php.net/archive/2026.php#2026-10-20-1
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