CVE-2026-33374

EUVD-2026-98905
The Prometheus rule conversion API endpoints in Grafana do not limit request body size, allowing authenticated users to trigger unbounded memory allocations that can crash the server through out-of-memory conditions.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GRAFANACNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 28.9%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
grafanagrafana
12.0.0 ≤
𝑥
≤ 12.3.11
CNA
grafanagrafana
12.4.0 ≤
𝑥
< 12.4.13
CNA
grafanagrafana
13.0.0 ≤
𝑥
< 13.0.11
CNA
grafanagrafana
13.1.0 ≤
𝑥
< 13.1.8
CNA
grafanagrafana
13.2.0 ≤
𝑥
< 13.2.4
CNA
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
grafana
jammy
dne
noble
dne
resolute
dne
xenial
needs-triage
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://grafana.com/security/security-advisories/cve-2026-33374