CVE-2026-21720

A flaw was found in Grafana. A remote attacker can exploit this vulnerability by sending a sustained volume of uncached /avatar/:hash requests. This action causes the system to create and block goroutines, which are lightweight concurrent functions, leading to a continuous increase in memory usag...

Missing Release of Resource after Effective Lifetime

Overview github.com/grafana/grafana/pkg/api is an open and composable observability and data visualization platform. Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime via the /avatar/:hash endpoint. An attacker can exhaust system memory and...