CVE-2026-33378

EUVD-2026-30144
Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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: 24%
Affected Products (NVD)
VendorProductVersion
grafanagrafana
8.0.0 ≤
𝑥
< 11.6.14
grafanagrafana
12.0.0 ≤
𝑥
< 12.2.8
grafanagrafana
12.3.0 ≤
𝑥
< 12.3.6
grafanagrafana
12.4.0 ≤
𝑥
< 12.4.3
grafanagrafana
11.6.14
grafanagrafana
11.6.14:security01
grafanagrafana
12.2.8
grafanagrafana
12.2.8:security01
grafanagrafana
12.3.6
grafanagrafana
12.3.6:security01
grafanagrafana
12.4.3
grafanagrafana
13.0.0
grafanagrafana
13.0.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://grafana.com/security/security-advisories/cve-2026-33378