CVE-2026-33382

EUVD-2026-42920
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 31.6%
Affected Products (NVD)
VendorProductVersion
grafanagrafana
11.6.0 ≤
𝑥
< 11.6.15
grafanagrafana
12.2.0 ≤
𝑥
< 12.2.9
grafanagrafana
12.3.0 ≤
𝑥
< 12.3.7
grafanagrafana
12.4.0 ≤
𝑥
< 12.4.4
grafanagrafana
13.0.0 ≤
𝑥
< 13.0.2
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://grafana.com/security/security-advisories/cve-2026-33382