7.5

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. 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Grafana ≫ Grafana SwEdition- Version >= 3.0.0 < 11.6.9
Grafana ≫ Grafana SwEditionenterprise Version >= 3.0.0 < 11.6.9
Grafana ≫ Grafana SwEdition- Version >= 12.0.0 < 12.0.8
Grafana ≫ Grafana SwEditionenterprise Version >= 12.0.0 < 12.0.8
Grafana ≫ Grafana SwEdition- Version >= 12.1.0 < 12.1.5
Grafana ≫ Grafana SwEditionenterprise Version >= 12.1.0 < 12.1.5
Grafana ≫ Grafana SwEdition- Version >= 12.2.0 < 12.2.3
Grafana ≫ Grafana SwEditionenterprise Version >= 12.2.0 < 12.2.3
Grafana ≫ Grafana Version12.3.0 SwEdition-
Grafana ≫ Grafana Version12.3.0 SwEditionenterprise
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.045
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@grafana.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

CWE-703 Improper Check or Handling of Exceptional Conditions

The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.