CVE-2026-21720
Grafana grafana/grafana-enterprise, grafana/grafana, Red Hat Ceph Storage 7 취약점
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. Sustained traffic with random hashes keeps tripping this timeout, so goroutine count grows linearly, eventually exhausting memory and causing Grafana to crash on some systems.
- 대응 우선순위
- 점검
- CVSS
- 7.5
- EPSS
- 0.62% 백분위 46.2% · 2026.08.03 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.01.27