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Outage in Nexcess

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

Minor
October 21, 2026 - Started 19 days ago
Official incident page

Incident Report

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.

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Latest Updates ( sorted recent to last )
MONITORING 10 days ago - at 10/29/2026 07:41PM

The security updates for CVE-2026-109618 and CVE-2026-109619 have been rolled out across our hosting fleet. Our teams continue to monitor the environment.

If your site uses an end-of-life PHP version (PHP 8.1 or older), we strongly recommend moving it to PHP 8.2 or newer. Some older PHP versions no longer receive security fixes from their vendors.

To check which PHP version your site is running, see: https://www.liquidweb.com/help-docs/performance/website-optimization/how-to-use-a-phpinfo-file/

If you have questions about your server, please contact our Support team.

IDENTIFIED 11 days ago - at 10/29/2026 01:57PM

Updates are continuing to roll out across our hosting fleet

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/

IDENTIFIED 12 days ago - at 10/28/2026 02:56PM

We are continuing to monitor patch deployment across our hosting fleets.

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/

IDENTIFIED 13 days ago - at 10/27/2026 02:12PM

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/

IDENTIFIED 14 days ago - at 10/26/2026 10:42AM

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.

IDENTIFIED 15 days ago - at 10/25/2026 12:23PM

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.

IDENTIFIED 15 days ago - at 10/24/2026 09:54PM

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.

IDENTIFIED 16 days ago - at 10/24/2026 11:37AM

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.

IDENTIFIED 16 days ago - at 10/24/2026 02:26AM

Patch deployment is ongoing across our fleet. We appreciate your continued patience.

IDENTIFIED 16 days ago - at 10/23/2026 05:55PM

We are continuing to work on a fix for this issue.

IDENTIFIED 17 days ago - at 10/23/2026 08:33AM

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.

IDENTIFIED 17 days ago - at 10/22/2026 07:28PM

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.

IDENTIFIED 18 days ago - at 10/22/2026 02:42PM

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.

INVESTIGATING 19 days ago - at 10/21/2026 04:06PM

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.

INVESTIGATING 19 days ago - at 10/21/2026 04:06PM

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.

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