PHP Security Vulnerability Update

Summary

PHP Security Vulnerability Update

All sites are protected, the PHP security updates have been rolled out across the platform, and we have no evidence of any breaches related to this vulnerability.

• Started

  Oct 21, 2026 · 7:04 PM

• Resolved

  Oct 22, 2026 · 8:26 AM

• Duration

  13h 21m

• Severity

  None

• ◐

  Investigating

  Oct 21 · 7:04 PM Kinsta

  We're actively addressing the PHP security vulnerability announced by the PHP security team. As PHP is managed at the platform level on Kinsta, fixes will be deployed automatically once validated. We do want to clarify that the attacks are being successfully mitigated by our Cloudflare site protections, across all our sites, based on rules created specifically for these vulnerabilities. We continue to maintain multiple comprehensive levels of security to mitigate any potential attacks. The patched versions of PHP 8.3 and 8.5 have now been validated and are being rolled out across our platform. If your site is already using either version and you'd like to apply the patch immediately, you can switch to a lower PHP version and then back to your original version. Updates for PHP 8.4, 8.2, 8.1, and 7.4 are still undergoing validation and will be rolled out once ready. No action is required on your end. We'll provide further updates as the rollout progresses.

• ◐

  Investigating

  Oct 21 · 8:20 PM Kinsta

  The following PHP versions have patches that are rolling out across our infrastructure: 8.5, 8.3, and 8.0 The following PHP versions are still undergoing validation and will be rolled out once ready: 8.4, 8.2, 8.1, and 7.4 Our Cloudflare firewall mitigations and local configuration changes to block potential exploits of these vulnerabilities are remaining in place for all sites regardless of patch status until further notice.

• ◐

  Investigating

  Oct 21 · 9:17 PM Kinsta

  The following PHP versions have patches that are rolling out across our infrastructure: 8.5, 8.3, 8.0, and 7.4 The following PHP versions are still undergoing validation and will be rolled out once ready: 8.4, 8.2, and 8.1 Our Cloudflare firewall mitigations and local configuration changes to block potential exploits of these vulnerabilities are remaining in place for all sites regardless of patch status until further notice.

• ◐

  Investigating

  Oct 21 · 10:06 PM Kinsta

  The following PHP versions have patches that are rolling out across our infrastructure: 8.5, 8.3, 8.1, 8.0, and 7.4 The following PHP versions are still undergoing validation and will be rolled out once ready: 8.4 and 8.2 Our Cloudflare firewall mitigations and local configuration changes to block potential exploits of these vulnerabilities are remaining in place for all sites regardless of patch status until further notice.

• ◐

  Investigating

  Oct 21 · 11:25 PM Kinsta

  The following PHP versions have patches that are rolling out across our infrastructure: 8.5, 8.3, 8.1, 8.0, 7.4, 8.2, and 8.4. Our Cloudflare firewall mitigations and local configuration changes to block potential exploits of these vulnerabilities are remaining in place for all sites regardless of patch status until further notice.

• ◐

  Investigating

  Oct 22 · 1:31 AM Kinsta

  The following PHP versions have patches that are rolling out across our infrastructure: 7.4, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5 Our Cloudflare firewall mitigations and local configuration changes to block potential exploits of these vulnerabilities are remaining in place for all sites regardless of patch status until further notice.

• ◐

  Investigating

  Oct 22 · 8:25 AM Kinsta

  The following PHP versions have patches that are rolling out across our infrastructure: 7.4, 8.0, 8.1, 8.2, 8.3, 8.4, 8.5 Our Cloudflare firewall mitigations and local configuration changes to block potential exploits of these vulnerabilities are remaining in place for all sites regardless of patch status until further notice.

• ✓

  Resolved

  Oct 22 · 8:26 AM Kinsta

  All sites are protected, the PHP security updates have been rolled out across the platform, and we have no evidence of any breaches related to this vulnerability.