Tenable incident
Tenable Vulnerability Management / Tenable One / Nessus: Vulnerability Scan Issues Related to DNS Resolution
Resolved after 16 hours 48 minutes, affecting AP-SYD-1 and BR01 and 1 more, on May 20, 2026.
We have implemented a fix for the issue and are monitoring the recovery.
Affected components
Update timeline
- investigating May 20, 2026, 07:07 PM UTC
We are aware of and actively investigating issues with DNS resolution failures for checks related to log4j plugins for certain users. We will provide periodic updates as our engineers continue working on this issue.
- identified May 20, 2026, 07:53 PM UTC
We have identified the cause of the problem. Our engineering team is working to implement a fix for the issue.
- monitoring May 20, 2026, 08:58 PM UTC
We have implemented a fix for the issue and are monitoring the recovery.
- resolved May 21, 2026, 11:55 AM UTC
The issue has been resolved. We are sorry for the disruption and inconvenience.
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