CVE-2026-33378
mediumpriority · track · 0EPSS 0.003 · 26 %ileDEEURUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (41)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1546Grafana: Mehrere SchwachstellenDeutsch2026-05-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Grafana ausnutzen, um erweiterte Privilegien zu erlangen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
- BIT-grafana-2026-33378Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro2026-05-15vendor · osvUS
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.
also known as (4)
Other names and identifiers for this entity.
sources
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references (3)
External citations — patches, advisories, analysis.
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