Elevated rate of Git push errors

Incident Report for GitHub

Resolved

On May 25, 2026, between 09:02 UTC and 09:11 UTC, Git push operations over HTTPS and SSH experienced elevated failures. During this window, an average of 31% and a peak of 43% of push requests failed.

The incident was caused by a recently enabled code path that issued an unexpectedly expensive database query against a primary database. The resulting load exhausted the database's connection pool, which caused the push failures above. The acute impact resolved automatically as in-flight work completed.

We mitigated the incident by disabling the feature flag controlling the new code path.

We are working to route the affected read to a replica to reduce the likelihood of issues like this in the future.

Posted May 25, 2026 - 09:02 UTC