Denial of Service Vulnerability in Grafana Plugin by Grafana Labs
CVE-2026-28383

6.5MEDIUM

Key Information:

Vendor

Grafana
Status
Grafana Oss
Vendor
CVE Published:
13 May 2026

What is CVE-2026-28383?

A vulnerability in the Grafana Plugin allows authenticated users to exploit a flaw in the handling of requests to the resources endpoint. By causing unbounded memory allocation through excessive request body sizes, an attacker can trigger an out-of-memory condition. This exploitation can lead to a denial of service, potentially impacting multiple users by overwhelming system resources and making the service unavailable.

Affected Version(s)

Grafana OSS OnPrem 6.7.0 <= 11.6.14

Grafana OSS OnPrem 11.6.14 < 11.6.14+security-04

Grafana OSS OnPrem 12.0.0 <= 12.2.8

References

https://grafana.com/security/security-advisories/cve-2026...
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.