PHP Vulnerability Responses by Company

GMO Prime Strategy Co., Ltd.

Japan-based services
Aliases / services
プライム・ストラテジー / GMOプライム・ストラテジー / Prime Strategy / KUSANAGI / クサナギ / GMO Prime Strategy / GMOプライム・ストラテジー株式会社 / GMO Prime Strategy Co., Ltd. / WEXAL
Official website
https://www.prime-strategy.co.jp/
Sources identifying the operating company

Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.

Response status by service

KUSANAGI

Response status
Fixed packages available; update required
Response information checked
2026-10-27

Current re-audit: Official response verified · Research date: 2026-10-27

Emergency packages for PHP8.2–8.5 were released October22. KUSANAGI will not provide updates for PHP8.1 or earlier and directs users to migrate.

Scope: Package availability does not prove installation on each system. October25 hardening concerns separate CVE-2026-115560.

What users should do

Follow the package and PHP activation instructions; verify automatic-update settings and results, and migrate older branches.

Official service URL

Source URLs

  1. GMO Prime Strategy: Emergency PHP updates 1https://kusanagi.tokyo/releases/27681/Response evidence
  2. GMO Prime Strategy: Emergency PHP updates 2https://kusanagi.tokyo/en/releases/27618/Service and operation documentation
  3. https://kusanagi.tokyo/releases/27593/https://kusanagi.tokyo/releases/27593/Service and operation documentation
  4. https://kusanagi.tokyo/releases/27754/https://kusanagi.tokyo/releases/27754/Service and operation documentation
  5. https://kusanagi.tokyo/releases/https://kusanagi.tokyo/releases/Service and operation documentation
  6. https://kusanagi.tokyo/column/archives/column_12196https://kusanagi.tokyo/column/archives/column_12196Service and operation documentation

WEXAL

Response status
Fixed PHP modules available
Response information checked
2026-10-27

Current re-audit: Official response verified · Research date: 2026-10-27

KUSANAGI PHP 8.4.27-1 and 8.5.12-1 releases explicitly include Page Speed Technology.

Scope: Availability is not installation completion; do not extend to every deployment including Reverse Proxy.

What users should do

Follow dnf upgrade and restart PHP with kusanagi php when used; match deployment and branch.

Source URLs

  1. https://www.wexal.jp/https://www.wexal.jp/Service and operation documentation
  2. https://kusanagi.tokyo/releases/27603/https://kusanagi.tokyo/releases/27603/Response evidence
  3. https://kusanagi.tokyo/releases/27599/https://kusanagi.tokyo/releases/27599/Response evidence
  4. https://kusanagi.tokyo/en/releases/27583/https://kusanagi.tokyo/en/releases/27583/Response evidence
Related official sources
  1. GMO Prime Strategy: Emergency PHP updates 1Official information directory
  2. GMO Prime Strategy: Emergency PHP updates 2Official information directory

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