Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 27 Jan 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Grafana
Grafana grafana Grafana grafana Enterprise |
|
| Vendors & Products |
Grafana
Grafana grafana Grafana grafana Enterprise |
Tue, 27 Jan 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-400 CWE-703 |
|
| Metrics |
ssvc
|
Tue, 27 Jan 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Unauthenticated DoS: avatar cache leaks goroutines when /avatar/:hash requests time out | |
| References |
| |
| Metrics |
cvssV3_1
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: GRAFANA
Published:
Updated: 2026-01-27T14:29:08.671Z
Reserved: 2026-01-05T09:26:06.214Z
Link: CVE-2026-21720
Updated: 2026-01-27T14:27:05.963Z
Status : Awaiting Analysis
Published: 2026-01-27T09:15:48.490
Modified: 2026-01-27T15:15:57.583
Link: CVE-2026-21720
No data.
OpenCVE Enrichment
Updated: 2026-01-27T20:17:18Z