GitHub Outage: Pull Requests and Issues Hit by Database Index Bug

Wednesday, August 12: GitHub, Incident with Pull Requests and Issues

GitHub Outage: Pull Requests and Issues Hit by Database Index Bug

On August 12, 2026, GitHub experienced an incident affecting Pull Requests, Issues, and Search. The root cause was a database index hint referencing an index removed by a recent migration, leading to query failures and 500 errors for some users. GitHub disabled the problematic configuration and saw recovery, but continued monitoring to ensure full resolution.

A database index hint was referencing an index that had been removed by a recent migration, causing query failures for some users.
  1. JohnMakin

    2-3 9's of availability on most services shown on their status page (and these are always generous). For a platform that wants to be the industry standard CI/CD platform, there is no way you can justify that.

  2. floppydive

    The incident is already superseded.. Or maybe they fixed it by shutting down all web gateways..

  3. hdgvhicv

    “You need to use cloud services because the uptime can’t be matched if you run it yourself”

    I mean it’s true, but not in a good way.

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2026-08-12