CVE-2026-33378
Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
13 May 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Grafana · Grafana OSSWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →