Reddit fixes three-hour outage caused by software bug

Reddit was down for thousands of users on Wednesday afternoon, with many people reporting error messages when trying to log in or view posts. The outage began around 1:30 p.m. Pacific Time and lasted roughly three hours before the platform returned to normal operation. Users on the site’s mobile apps, desktop web version, and the API all reported similar problems, indicating a widespread issue rather than a localized glitch.

The site’s downtime is significant because Reddit is a major hub for real‑time discussion, news, and niche communities. Over 430 million monthly active users rely on the platform for everything from breaking‑news alerts to hobbyist forums. A disruption not only halts content sharing but also affects advertisers and developers who depend on Reddit’s API for data and engagement metrics. In recent years, Reddit has grown into a key player in the social‑media ecosystem, and outages can ripple into other services that integrate Reddit data.

Investigators say the root cause was a software bug in the platform’s new authentication module, which was rolled out during a routine update earlier that week. The bug caused a cascading failure in the login system, preventing users from authenticating and triggering error pages across the site. Reddit’s engineering team issued a brief statement acknowledging the problem and noting that they were working to roll back the update while they patched the issue. The company also reported that the error was isolated to the authentication service and did not affect user data or content storage.

After the outage, Reddit’s engineering team has announced that the site is back online and that they are conducting a full post‑mortem to identify the precise cause and prevent recurrence. The company has pledged to provide a detailed report within the next week. Users are being told to clear their browser cache or reinstall the app if they continue to see error messages, but most are now able to log in without issue. The incident highlights the fragility of large‑scale online platforms and the importance of robust testing for software updates that affect millions of users.