Public Docker Hub Outage Impacting Customer Pipelines

Incident Report for Harness

Postmortem

Summary

Between 2025-09-24 16:09 PDT and 2025-09-24 18:29 PDT, Docker Hub experienced an outage, which indirectly affected customer pipelines for CI, STO, and IACM, leading to intermittent pipeline and image pull failures. Once Docker Hub’s issues were mitigated, all affected Harness services recovered and returned to full functionality.

Root Cause

The issue originated from an upstream service disruption at Docker Hub that impacted dependent image operations within the Harness platform.

Mitigation

No direct actions were required from Harness, as the issue was caused by an upstream outage at Docker Hub. Services recovered automatically once Docker Hub restored normal operations.

Posted Oct 08, 2025 - 14:19 PDT

Resolved

This incident has been resolved.

Posted Sep 24, 2025 - 18:39 PDT

Monitoring

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

Posted Sep 24, 2025 - 18:10 PDT

Identified

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

Posted Sep 24, 2025 - 17:31 PDT

Investigating

We are currently investigating this issue.

Posted Sep 24, 2025 - 17:18 PDT

This incident affected: Prod 4 (Continuous Integration Enterprise(CIE) - Self Hosted Runners, Continuous Integration Enterprise(CIE) - Mac Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Linux Cloud Builds, Security Testing Orchestration (STO), Infrastructure as Code Management (IaCM)), Prod 3 (Continuous Integration Enterprise(CIE) - Self Hosted Runners, Continuous Integration Enterprise(CIE) - Mac Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Linux Cloud Builds, Security Testing Orchestration (STO), Infrastructure as Code Management (IaCM)), Prod Eu1 (Continuous Integration Enterprise(CIE) - Self Hosted Runners, Continuous Integration Enterprise(CIE) - Mac Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Linux Cloud Builds, Security Testing Orchestration (STO), Infrastructure as Code Management (IaCM)), Prod 2 (Continuous Integration Enterprise(CIE) - Self Hosted Runners, Continuous Integration Enterprise(CIE) - Mac Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Linux Cloud Builds, Security Testing Orchestration (STO), Infrastructure as Code Management (IaCM)), and Prod 1 (Continuous Integration Enterprise(CIE) - Self Hosted Runners, Continuous Integration Enterprise(CIE) - Mac Cloud Builds, Continuous Integration Enterprise(CIE) - Windows Cloud Builds, Continuous Integration Enterprise(CIE) - Linux Cloud Builds, Security Testing Orchestration (STO), Infrastructure as Code Management (IaCM)).