CVE-2026-33382

Denial of service via unbounded request body size

State: Published
Severity: 7.5 High
Published: Jul 10, 2026
Updated: Aug 27, 2026
Reserved: Mar 19, 2026

Description

Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	GRAFANA

Weaknesses

CWE-400

Affected Products

Product	Versions
Grafana OSSGrafana	11.6.0 through 11.6.14Affected 12.2.0 through 12.2.8Affected 12.3.0 through 12.3.6Affected 12.4.0 through 12.4.3Affected 13.0.0 through 13.0.1Affected

References

https://grafana.com/security/security-advisories/cve-2026-33382vendor-advisory

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