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GitLab: Issues with GitLab Duo in merge requests
Affected components: GitLab Duo
Timeline of updates
- investigating
We're investigating an issue where customers using `@GitLabDuo` mentions in merge requests are receiving access errors. Impact has been reported across GitLab.com, Dedicated, and Self-Managed. Our team is actively investigating. We'll share another update as soon as we have more information.
- identified
We've identified a likely root cause for the `@GitLabDuo` access errors in merge requests and are preparing a revert MR. We'll share another update once it's deployed.
- monitoring
A fix has been deployed via a revert MR. We're moving the incident to Monitoring and will share another update once we can confirm it's fully resolved.
- monitoring
We are still monitoring the deployed fix. We will share another update once we can confirm it's fully resolved. More info: https://gitlab.com/gitlab-com/gl-infra/production/-/work_items/22228
- identified
After monitoring, our team is still seeing some failures which is prompting additional investigation. While there has been a drop in errors, some users continue to experience issues.
- identified
No material updates at this time. Our team is still seeing some failures which prompted additional investigation. While there has been a drop in errors, some users continue to experience issues.
- monitoring
A fix has now been deployed that should remediate the errors. We will continue to monitor, and as long as error rates remain low, we will resolve the incident.
- resolved
We're no longer seeing errors related to this in the logs, so we are resolving this incident. If you're still experiencing errors when using `@GitLabDuo` mentions in merge requests, please contact support. https://support.gitlab.com
Rewindex changes for this incident
- Critical incident: Issues with GitLab Duo in merge requests 2026-05-29 12:50 UTC
Impact, status and times are the vendor’s own, as last archived. View on status.gitlab.com (opens in new tab). GitLab profile · Recent GitLab incidents · Markdown · JSON