Incident History

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

On August 11, 2026, between 14:00 UTC and 16:00 UTC the GraphQL API service was degraded and customers in saw higher than normal timeouts. On average, the timeout rate was 0.06% and peaked at 0.14% of requests routing to the service. This was due to increased utilization at one of our sites which caused resource contention across our dependencies, leading to an increase in timeouts for GraphQL requests. We mitigated the incident by increasing capacity to alleviate the capacity bottleneck. We are working to improve our monitoring so that we can proactively reduce the impact of high consumption requests in addition to scaling up; Additionally, we will improve our time to detection and mitigation of issues like this one in the future.

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

On August 10, 2026, between 17:16 and 18:21 UTC, users were unable to create new fine-grained personal access tokens (FG PAT) through the GitHub website. When a user submitted the FG PAT creation form, they were returned to the FG PAT list without an error message and no FG PAT was created. Creating classic personal access tokens, as well as editing or deleting existing FG PAT were not affected.The cause was a change to how the website loads certain front-end JavaScript that was enabled for all users at 17:15 UTC; the change interacted with an issue in the token creation form's confirmation step that prevented it from running, so the final submission that actually creates the token never completed. Because the page still loaded and the server returned a normal response, the failure produced no error message. GitHub mitigated the incident by disabling the change at 18:21 UTC, at which point token creation recovered immediately, and the incident was resolved at 18:46 UTC.To reduce the chance of recurrence, GitHub is adding monitoring and alerting for anomalies in the FG PAT creation success rate and is removing the issue in the FG PAT creation form that prevented the confirmation step from running. GitHub is also adding automated detection of the issue so other areas of the GitHub front end do not repeat the problem.

On August 6, 2026, between 15:05 UTC and 00:14 UTC on August 7, GitHub Actions experienced degraded availability. During the incident, workflow runs failed or remained queued for an extended period of time. Customers using both GitHub-hosted and self-hosted runners were affected. At peak, 71% of workflow runs experienced infrastructure failures and 75% of the remaining workflow runs were delayed by more than 5 minutes. The incident was triggered by a routine deployment to an internal Actions service responsible for processing events and generating Actions jobs. The deployment exposed an existing capacity and concurrency weakness. As pods were replaced during the deployment, remaining capacity became saturated, causing services to crash and triggering a cascading impact across multiple clusters and downstream services. These services recovered at 17:00 after expanding capacity, throttling incoming webhook-triggered work to allow the system to recover, and increasing processing capacity for the backlog of affected events. As the incident progressed, a backlog of work accumulated across the systems responsible for assigning jobs to runners. Due to a latent bug in one of the services responsible for job assignment, runners were getting assigned jobs that were no longer valid and then getting stuck retrying those jobs, preventing them from picking up valid work. This second stage of impact was mitigated by deploying changes to prevent runners from repeatedly attempting to acquire invalid jobs. These mitigations allowed the accumulated queues to drain and Actions to recover to normal operation. Some Actions Runner Controller (ARC) runners remained stuck after the incident. A mitigation deployed during the incident inadvertently affected these runners, causing some to remain offline until they were manually recovered. We subsequently rolled back the change and are adding automatic recovery in upcoming Runner and ARC releases. Some jobs created during the incident were also left stuck unable to be retried or canceled. CLI and UI solutions for customers to address these were shared at https://github.com/orgs/community/discussions/204152#discussioncomment-17946043. To prevent recurrence, we are making improvements to deployment and capacity safeguards for the affected services, strengthening monitoring for the conditions that preceded the incident, improving the resiliency and recovery of queued work and runner assignment, and adding automatic recovery for self-hosted runners affected by similar failure conditions. We are also making additional improvements to reduce the risk of cascading failures and accelerate recovery during large-scale Actions disruptions.

On August 6, 2026, at 07:00 UTC, a configuration change inadvertently reduced the capacity of the service that processes GitHub Pages deployments. As traffic increased over the following hours, latency in the deployment pipeline progressively increased. At 12:09 UTC, latency crossed the alerting threshold and the team began investigating. We reverted the invalid configuration and applied additional mitigations, including reducing status deployment processing to lower the load on our Redis cluster. Latency returned to normal levels at 15:40 UTC. Customer impact occurred from 11:34 to 15:32 UTC. During this period, we failed to process approximately 128,000 deployments. We have updated our alerts to detect elevated processing latency sooner and to notify us immediately when latency causes deployment processing failures. We've confirmed this incident was not fully captured by our availability metrics. In the coming days, we'll update how GitHub Pages availability is measured so incidents like this are accurately reflected going forward.