CVE-2026-33375 (GCVE-0-2026-33375)

Vulnerability from cvelistv5 – Published: 2026-03-26 20:05 – Updated: 2026-03-27 14:40
VLAI?
Title
Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS
Summary
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.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Grafana Grafana OSS Affected: 11.6.0 , < 11.6.14+security-01 (semver)
Affected: 12.1.0 , < 12.1.10+security-01 (semver)
Affected: 12.2.0 , < 12.2.8+security-01 (semver)
Affected: 12.3.0 , < 12.3.6+security-01 (semver)
Affected: 12.4.0 , < 12.4.2 (semver)
Create a notification for this product.
Date Public ?
2026-03-26 12:52
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33375",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-27T14:39:23.654250Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-27T14:40:37.122Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "OnPrem"
          ],
          "product": "Grafana OSS",
          "vendor": "Grafana",
          "versions": [
            {
              "lessThan": "11.6.14+security-01",
              "status": "affected",
              "version": "11.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "12.1.10+security-01",
              "status": "affected",
              "version": "12.1.0",
              "versionType": "semver"
            },
            {
              "lessThan": "12.2.8+security-01",
              "status": "affected",
              "version": "12.2.0",
              "versionType": "semver"
            },
            {
              "lessThan": "12.3.6+security-01",
              "status": "affected",
              "version": "12.3.0",
              "versionType": "semver"
            },
            {
              "lessThan": "12.4.2",
              "status": "affected",
              "version": "12.4.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2026-03-26T12:52:32.117Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-27T14:28:53.648Z",
        "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
        "shortName": "GRAFANA"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://grafana.com/security/security-advisories/cve-2026-33375"
        }
      ],
      "source": {
        "discovery": "BUG_BOUNTY"
      },
      "title": "Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
    "assignerShortName": "GRAFANA",
    "cveId": "CVE-2026-33375",
    "datePublished": "2026-03-26T20:05:52.564Z",
    "dateReserved": "2026-03-19T07:55:06.977Z",
    "dateUpdated": "2026-03-27T14:40:37.122Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-33375\",\"sourceIdentifier\":\"security@grafana.com\",\"published\":\"2026-03-26T21:17:05.573\",\"lastModified\":\"2026-03-31T19:01:30.800\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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.\"},{\"lang\":\"es\",\"value\":\"El plugin de fuente de datos de Grafana MSSQL contiene un fallo l\u00f3gico que permite a un usuario con pocos privilegios (Visor) eludir las restricciones de la API y desencadenar un agotamiento catastr\u00f3fico de la memoria por Out-Of-Memory (OOM), lo que provoca la ca\u00edda del contenedor anfitri\u00f3n.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@grafana.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"11.6.0\",\"versionEndExcluding\":\"11.6.14\",\"matchCriteriaId\":\"D46EB6A0-D0D1-4209-B7B5-3BACD4ADAF9F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.1.0\",\"versionEndExcluding\":\"12.1.10\",\"matchCriteriaId\":\"C0016311-847E-438D-A1C7-B03005867EAF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.2.0\",\"versionEndExcluding\":\"12.2.8\",\"matchCriteriaId\":\"96AAB185-6025-4B8F-A07E-CABD00DDC295\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.3.0\",\"versionEndExcluding\":\"12.3.6\",\"matchCriteriaId\":\"581CC6E2-4E52-4E13-804B-8D944BA03D15\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.4.0\",\"versionEndExcluding\":\"12.4.2\",\"matchCriteriaId\":\"A699040D-CF1F-474F-A01D-49C6E62C026B\"}]}]}],\"references\":[{\"url\":\"https://grafana.com/security/security-advisories/cve-2026-33375\",\"source\":\"security@grafana.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33375\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-27T14:39:23.654250Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-27T14:39:19.947Z\"}}], \"cna\": {\"title\": \"Grafana MSSQL Data Source Plugin: Restriction Bypass Leading to OOM DoS\", \"source\": {\"discovery\": \"BUG_BOUNTY\"}, \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\"}}], \"affected\": [{\"vendor\": \"Grafana\", \"product\": \"Grafana OSS\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.6.0\", \"lessThan\": \"11.6.14+security-01\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"12.1.0\", \"lessThan\": \"12.1.10+security-01\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"12.2.0\", \"lessThan\": \"12.2.8+security-01\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"12.3.0\", \"lessThan\": \"12.3.6+security-01\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"12.4.0\", \"lessThan\": \"12.4.2\", \"versionType\": \"semver\"}], \"platforms\": [\"OnPrem\"], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-03-26T12:52:32.117Z\", \"references\": [{\"url\": \"https://grafana.com/security/security-advisories/cve-2026-33375\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"providerMetadata\": {\"orgId\": \"57da9224-a3e2-4646-9d0e-c4dc2e05e7da\", \"shortName\": \"GRAFANA\", \"dateUpdated\": \"2026-03-27T14:28:53.648Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-33375\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-27T14:40:37.122Z\", \"dateReserved\": \"2026-03-19T07:55:06.977Z\", \"assignerOrgId\": \"57da9224-a3e2-4646-9d0e-c4dc2e05e7da\", \"datePublished\": \"2026-03-26T20:05:52.564Z\", \"assignerShortName\": \"GRAFANA\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.