On 2026/10/20, the PHP development team announced that there are two critical vulnerabilities in PHP, and that a fix will be released on 2026/10/21 at 23:00 (Japan Time).
Is Teachme Communication affected by this vulnerability?
No, it is not affected.
Teachme Communication and all other services in the Teachme series do not use PHP, so they are not impacted by this vulnerability.
[Reference Information]
▼[Request for Advance Preparation] Regarding the Scheduled Release of 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
For inquiries regarding this matter (Japan, Thailand, Vietnam)
■Studist Japan
Use the Contact Form for inquiries regarding this matter.
Email: support@teachme.jp
■Studist Thailand
Email: support-global@teachme.jp
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■Studist Vietnam
Please contact us at support-vn@teachme.jp.