Medium severity · published Mar 26, 2026
CVE-2026-33375
Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS
6.5
CVSS
0.5%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
Grafana · Grafana
11.6.0 before 11.6.14+security-01; 12.1.0 before 12.1.10+security-01; 12.2.0 before 12.2.8+security-01; 12.3.0 before 12.3.6+security-01; 12.4.0 before 12.4.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33375
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33375
Vendor Advisory
https://grafana.com/security/security-advisories/cve-2026-33375
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