Tenable incident

Tenable One: Attack Surface Management inaccessible

Major Resolved View vendor source →

Tenable experienced a major incident on October 20, 2025 affecting sing and us-1a and 1 more component, lasting 12h 44m. The incident has been resolved; the full update timeline is below.

Started
Oct 20, 2025, 09:59 PM UTC
Resolved
Oct 21, 2025, 10:43 AM UTC
Duration
12h 44m
Detected by Pingoru
Oct 20, 2025, 09:59 PM UTC

Affected components

singus-1aus-2aus-2bus-3aus-4aus-5amssp-us-1 (us07)us08ap-syd-1

Update timeline

  1. investigating Oct 20, 2025, 09:59 PM UTC

    We are aware of and actively investigating access issues resulting in 503's error messages that is impacting Attack Surface Management for certain users. We will provide periodic updates as our engineers continue working on this issue.

  2. identified Oct 20, 2025, 09:59 PM UTC

    The issue has been identified and a fix is being implemented.

  3. identified Oct 20, 2025, 10:51 PM UTC

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

  4. monitoring Oct 20, 2025, 11:41 PM UTC

    A fix has been implemented and we are monitoring the results.

  5. monitoring Oct 21, 2025, 04:38 AM UTC

    A fix has been implemented and we are monitoring the results.

  6. resolved Oct 21, 2025, 10:43 AM UTC

    The issue has been resolved. We are sorry for the disruption and inconvenience.