CVE-2026-33375: medium-severity vulnerability in Grafana OSS
Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.5%
The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API restrictions and trigger a catastrophic Out-Of-Memory (OOM) memory exhaustion, crashing the host container.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Grafana · Grafana OSSRelated CVEs — Grafana OSS
In the same product, most dangerous first.
CVE-2026-15815HIGHCVE-2026-15815 CVE RecordEPSS 0.7%CVE-2026-42129HIGHPath traversal in the Loki data source pluginEPSS 0.4%CVE-2026-42127HIGHPre-authentication denial of service in the public dashboard query endpointEPSS 0.4%CVE-2026-19475MEDIUMSQL Data Source Plugin: OOM DoS via $__timeGroup macroEPSS 0.4%CVE-2026-8609MEDIUMPre-authentication denial of service via the OAuth login routeEPSS 0.4%CVE-2026-33382HIGHDenial of service via unbounded request body sizeEPSS 0.4%