No impact incident

Nexcess Server: PHP Security Vulnerability Assessment (CVE-2026-109618 & CVE-2026-109619)

Current status of Nexcess Server: Operational — live Nexcess Server status

Timeline

1. Oct 21, 2026, 16:06 UTC
   investigating
   We are aware of recent reports regarding two critical vulnerabilities affecting PHP, identified as CVE-2026-109618 and CVE-2026-109619. These vulnerabilities may affect web servers running PHP 5.4 and later and could potentially allow remote code execution. Our Security and Engineering teams are actively reviewing our hosting environments to assess potential impact. As a precautionary measure, we are implementing appropriate mitigations and working to deploy the necessary security updates across affected systems as they become available. We are continuing to closely monitor the situation and will provide further updates as additional information becomes available. If you need assistance or have any concerns, please contact our Support team.
2. Oct 21, 2026, 16:06 UTC
   investigating
   Our Security and Engineering teams are continuing to evaluate the optimal patching strategy for our hosting environments. We are currently analyzing the security releases and testing deployment paths in our staging environments to ensure service stability. At this time, no patches or modifications have been rolled out to production systems. Our infrastructure remains under heightened monitoring, and we will share further details here as soon as our deployment plan and maintenance windows are finalized. If you need assistance or have any concerns, please contact our Support team.
3. Oct 22, 2026, 14:42 UTC
   identified
   Our Engineering teams are continuing to deploy and verify patched PHP builds across our hosting environments. The rollout is progressing, and teams are checking that the appropriate update is applied for each environment. The fixed PHP versions identified so far include: PHP 8.x: 8.0.30-11, 8.0.30-12, 8.0.30-21, 8.1.34-4, 8.1.34-5, 8.1.34-6, 8.2.34-2, 8.2.35, 8.3.35-2, 8.3.36, 8.4.26-2, 8.4.27, 8.5.11-2, and 8.5.12 PHP 7.x: 7.0.33-3, 7.0.33-29, 7.1.33-3, 7.1.33-20, 7.2.34-2, 7.2.34-12, 7.3.31-2, 7.3.33-15, 7.4.33-18, 7.4.33-19, and 7.4.33-31 PHP 5.x: 5.2.17-3, 5.2.17-27, 5.3.24-2, 5.3.29-29, 5.4.14-2, 5.4.45-2, 5.4.45-82, 5.5.38-2, 5.5.38-64, 5.6.40-15, and 5.6.40-25 If you would like to check your sites PHP information, please follow the steps in this Help Article: https://www.liquidweb.com/help-docs/performance/website-optimization/how-to-use-a-phpinfo-file Our infrastructure remains under heightened monitoring as the rollout continues. We will share further updates here as work progresses and additional information becomes available.
4. Oct 22, 2026, 19:28 UTC
   identified
   Our Security and Engineering teams are continuing to deploy and verify security updates across our hosting environments. The work is progressing in stages, and teams are monitoring systems throughout the rollout to help maintain service stability. We are continuing to assess the remaining environments and will share further updates as patching progresses. To check the PHP version currently running on your site, please follow this Help Article: https://www.liquidweb.com/help-docs/performance/website-optimization/how-to-use-a-phpinfo-file/ If your site is running an unsupported or end-of-life PHP version, we recommend updating your code to a supported version and switching to it as soon as possible. If you need assistance or have concerns, please contact our Support team.
5. Oct 23, 2026, 08:33 UTC
   identified
   Our Security and Engineering teams continue to assess the remaining hosting environments and verify the deployment of security updates. The rollout is progressing in stages, with teams monitoring systems to help maintain service stability. We will continue to monitor progress and share further updates as more information becomes available. To check the PHP version currently running on your site, please refer to this Help Article: https://www.liquidweb.com/help-docs/performance/website-optimization/how-to-use-a-phpinfo-file/ The fixed PHP versions identified so far include: PHP 8.x: 8.0.30-11, 8.0.30-12, 8.0.30-21, 8.1.34-4, 8.1.34-5, 8.1.34-6, 8.2.34-2, 8.2.35, 8.3.35-2, 8.3.36, 8.4.26-2, 8.4.27, 8.5.11-2, and 8.5.12 PHP 7.x: 7.0.33-3, 7.0.33-29, 7.1.33-3, 7.1.33-20, 7.2.34-2, 7.2.34-12, 7.3.31-2, 7.3.33-15, 7.4.33-18, 7.4.33-19, and 7.4.33-31 PHP 5.x: 5.2.17-3, 5.2.17-27, 5.3.24-2, 5.3.29-29, 5.4.14-2, 5.4.45-2, 5.4.45-82, 5.5.38-2, 5.5.38-64, 5.6.40-15, and 5.6.40-25 If your site is running an unsupported or end-of-life PHP version, we recommend updating your code to a supported version and switching to it as soon as possible. If you need assistance or have any concerns, don't hesitate to get in touch with our Support team.
6. Oct 23, 2026, 17:55 UTC
   identified
   We are continuing to work on a fix for this issue.
7. Oct 24, 2026, 02:26 UTC
   identified
   Patch deployment is ongoing across our fleet. We appreciate your continued patience.
8. Oct 24, 2026, 11:37 UTC
   identified
   Patch deployment continues across the affected hosting environments. Our Security and Engineering teams are monitoring the rollout to ensure successful deployment and maintain service stability. We will continue to provide updates as progress is made. Thank you for your patience.
9. Oct 24, 2026, 21:54 UTC
   identified
   The Patch deployment is underway across affected environments with good progress. We will share another update as soon as more information is available. Thank you for your understanding and patience.
10. Oct 25, 2026, 12:23 UTC
    identified
    The security patch deployment is progressing well across the affected environments. Our teams are continuing to work toward completing the deployment and ensuring the security of the impacted services. We will provide further updates as more information becomes available.
11. Oct 26, 2026, 10:42 UTC
    identified
    Patch deployment is progressing well across the affected environments. To check the PHP version currently running on your site, please refer to this help article: https://www.liquidweb.com/help-docs/performance/website-optimization/how-to-use-a-phpinfo-file/ The fixed PHP versions identified so far include: PHP 8.x: 8.0.30-11, 8.0.30-12, 8.0.30-21, 8.1.34-4, 8.1.34-5, 8.1.34-6, 8.2.34-2, 8.2.35, 8.3.35-2, 8.3.36, 8.4.26-2, 8.4.27, 8.5.11-2, and 8.5.12 PHP 7.x: 7.0.33-3, 7.0.33-29, 7.1.33-3, 7.1.33-20, 7.2.34-2, 7.2.34-12, 7.3.31-2, 7.3.33-15, 7.4.33-18, 7.4.33-19, and 7.4.33-31 PHP 5.x: 5.2.17-3, 5.2.17-27, 5.3.24-2, 5.3.29-29, 5.4.14-2, 5.4.45-2, 5.4.45-82, 5.5.38-2, 5.5.38-64, 5.6.40-15, and 5.6.40-25 If your site is running an unsupported or end-of-life PHP version, we recommend updating your code to a supported version and switching to it as soon as possible. If you need assistance or have any concerns, don't hesitate to get in touch with our Support team.

Updates as published by Nexcess Server (original).