Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS

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.

Affected products

Grafana

Grafana OSS

< 11.6.14+security-01 - AFFECTED

< 12.1.10+security-01 - AFFECTED

< 12.2.8+security-01 - AFFECTED

< 12.3.6+security-01 - AFFECTED

< 12.4.2 - AFFECTED

References

grafana.com

https://grafana.com/security/security-advisories/cve-2026-33375

vendor-advisory

GitHub Security Advisories

GHSA-9vq6-r4xh-vm55

The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user ...

https://github.com/advisories/GHSA-9vq6-r4xh-vm55

nvd.nist.gov

https://nvd.nist.gov/vuln/detail/CVE-2026-33375

grafana.com

https://grafana.com/security/security-advisories/cve-2026-33375

github.com

https://github.com/advisories/GHSA-9vq6-r4xh-vm55

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-33375

Click to expand

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    "dateUpdated": "2026-03-26T20:05:52.564Z",
    "dateReserved": "2026-03-19T07:55:06.977Z",
    "datePublished": "2026-03-26T20:05:52.564Z",
    "state": "PUBLISHED"
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      "datePublic": "2026-03-26T12:52:32.117Z",
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