Outage in Tenable
Tenable Vulnerability Management / Tenable One / Nessus: Vulnerability Scan Issues Related to DNS Resolution
Resolved MajorIncident Report
Summary AI Generated
Tenable experienced DNS resolution failures affecting log4j plugin vulnerability scans across multiple global components including Tenable One, various regional instances, and government cloud services. The issue impacted vulnerability scanning capabilities for certain users over a 16.9-hour period. Engineers identified the root cause, implemented a fix, and fully resolved the DNS resolution problems affecting the security scanning functionality.
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.
Components affected
Tenable JP01 Tenable US-1A Tenable US07 Tenable FRA Tenable US-2B Tenable US-3A Tenable US-4A Tenable IN01 Tenable BR01 Tenable AP-SYD-1 Tenable US-2A Tenable US-5A Tenable One Tenable UK-LON-1 Tenable SING Tenable Gov01 Tenable CA01Trusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
10 days ago - at 05/21/2026 11:55AM
The issue has been resolved. We are sorry for the disruption and inconvenience.
MONITORING
11 days ago - at 05/20/2026 08:58PM
We have implemented a fix for the issue and are monitoring the recovery.
IDENTIFIED
11 days ago - at 05/20/2026 07:53PM
We have identified the cause of the problem. Our engineering team is working to implement a fix for the issue.
INVESTIGATING
11 days ago - at 05/20/2026 07:07PM
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.
Latest Tenable outages
Tenable Vulnerability Management: Scan Processing Delays - about 14 hours ago
WAS issues - OpenAPI file validation error - 3 days ago
Tenable Vulnerability Management: New Domains added in MSSP Portal Not Propagating to Child Containers - 20 days ago
Data ingest delays on US-2a - 24 days ago
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