[INC-1101] Real-Time WAF Alerting Service Degradation

What to do

• Check whether you use Imperva CDN and WAF Management. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 1h it lasted.

  Anything that failed between 2026-08-05 11:56 UTC and 2026-08-05 12:56 UTC may need a replay.

• Subscribe to Imperva's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=imperva works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Imperva 4

1. investigatingAug 5, 2026, 11:56 AM UTC

   We are currently investigating reports of a potential issue affecting the generation and/or delivery of real-time WAF alerts. Some customers may experience delays in receiving WAF alerts or observe that expected real-time notifications are not being triggered. We are actively assessing the scope and impact of the issue and will provide further updates as more information becomes available. WAF protection remains fully operational. This issue affects real-time alerts only and does not impact traffic inspection or policy enforcement. Our next update will be provided as soon as we have additional information to share.

   provider

2. identifiedAug 5, 2026, 12:23 PM UTC

   We have identified the underlying cause of the issue affecting real-time WAF alerts. Our investigation indicates that the impact is limited to a subset of customers. WAF protection remains fully operational. This issue affects real-time alerting only and does not impact traffic inspection or policy enforcement. Our teams are working on mitigation and validation efforts. We will provide further updates as we make progress toward resolution. Our next update will be before 12:55 PM UTC

   provider

3. monitoringAug 5, 2026, 12:35 PM UTC

   A fix has been implemented to address the issue affecting real-time WAF alerts, and we are observing recovery across impacted services. WAF protection remained fully operational throughout the incident. The issue was limited to real-time alerting and did not impact traffic inspection or policy enforcement. We are currently monitoring the environment to ensure alert delivery has returned to normal operation and that no further issues are observed. We will continue to provide updates as warranted.

   provider

4. resolvedAug 5, 2026, 12:56 PM UTC

   The issue affecting real-time WAF alerts has been resolved. Following the implementation of a fix and a period of monitoring, we have confirmed that real-time WAF alert delivery has returned to normal operation. WAF protection remained fully operational throughout the incident, and traffic inspection and policy enforcement were not impacted. We apologise for any inconvenience caused and appreciate your patience while we worked to resolve this issue.

   provider

Corrections

None so far.

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