UBUNTU-CVE-2026-21720

Every uncached /avatar/:hash request spawns a goroutine that refreshes the Gravatar image. If the refresh sits in the 10-slot worker queue longer than three seconds, the handler times out and stops listening for the result, so that goroutine blocks forever trying to send on an unbuffered channel...

EUVD-2026-4841

Every uncached /avatar/:hash request spawns a goroutine that refreshes the Gravatar image. If the refresh sits in the 10-slot worker queue longer than three seconds, the handler times out and stops listening for the result, so that goroutine blocks forever trying to send on an unbuffered channel...

WS-2023-0342

In rubygems.org it is possible to guess email address from gravatar image URL. As a result, the email address of a user who has set the email address as private may be obtained...