CVE-2026-33382

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Grafana

PublishedJul 10, 2026

First seenJul 10, 2026

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update

grafana grafana11.6.15, 12.2.9, 12.3.7, 12.4.4, 13.0.2 or later

Vendor advisories

grafana.com/security/security-advisories/cve-2026-33382

Affected products

Product	Affected versions	Fixed in
grafana grafana	11.6.0 ≤ v < 11.6.15, 12.2.0 ≤ v < 12.2.9, 12.3.0 ≤ v < 12.3.7, 12.4.0 ≤ v < 12.4.4, 13.0.0 ≤ v < 13.0.2	11.6.15, 12.2.9, 12.3.7, 12.4.4, 13.0.2

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