CVE-2026-33382 (GCVE-0-2026-33382)

Vulnerability from cvelistv5 – Published: 2026-07-10 14:58 – Updated: 2026-08-24 13:52
VLAI
Title
Denial of service via unbounded request body size
Summary
Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-10 15:59 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Grafana Grafana OSS Affected: 11.6.0 , ≤ 11.6.14 (semver)
Affected: 12.2.0 , ≤ 12.2.8 (semver)
Affected: 12.3.0 , ≤ 12.3.6 (semver)
Affected: 12.4.0 , ≤ 12.4.3 (semver)
Affected: 13.0.0 , ≤ 13.0.1 (semver)
guessed Create a notification for this product.
Date Public
2026-06-09 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-33382",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-10T15:59:38.846803Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-10T15:59:43.742Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Grafana OSS",
          "vendor": "Grafana",
          "versions": [
            {
              "lessThanOrEqual": "11.6.14",
              "status": "affected",
              "version": "11.6.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.2.8",
              "status": "affected",
              "version": "12.2.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.3.6",
              "status": "affected",
              "version": "12.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.4.3",
              "status": "affected",
              "version": "12.4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "13.0.1",
              "status": "affected",
              "version": "13.0.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "datePublic": "2026-06-09T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-24T13:52:14.316Z",
        "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
        "shortName": "GRAFANA"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://grafana.com/security/security-advisories/cve-2026-33382"
        }
      ],
      "source": {
        "discovery": "INTERNAL_FINDING"
      },
      "title": "Denial of service via unbounded request body size",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
    "assignerShortName": "GRAFANA",
    "cveId": "CVE-2026-33382",
    "datePublished": "2026-07-10T14:58:23.329Z",
    "dateReserved": "2026-03-19T07:55:06.978Z",
    "dateUpdated": "2026-08-24T13:52:14.316Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-33382",
      "date": "2026-08-25",
      "epss": "0.00388",
      "percentile": "0.31621"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-33382\",\"sourceIdentifier\":\"security@grafana.com\",\"published\":\"2026-07-10T16:16:29.130\",\"lastModified\":\"2026-07-13T20:51:35.700\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.\"}],\"affected\":[{\"source\":\"security@grafana.com\",\"affectedData\":[{\"vendor\":\"Grafana\",\"product\":\"Grafana OSS\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"11.6.0\",\"lessThanOrEqual\":\"11.6.14\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"12.2.0\",\"lessThanOrEqual\":\"12.2.8\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"12.3.0\",\"lessThanOrEqual\":\"12.3.6\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"12.4.0\",\"lessThanOrEqual\":\"12.4.3\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"13.0.0\",\"lessThanOrEqual\":\"13.0.1\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@grafana.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-10T15:59:38.846803Z\",\"id\":\"CVE-2026-33382\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security@grafana.com\",\"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\":\"11.6.15\",\"matchCriteriaId\":\"B154BC07-0914-4E25-9D84-FB64205493F7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.2.0\",\"versionEndExcluding\":\"12.2.9\",\"matchCriteriaId\":\"052CFAA8-0386-43DF-869A-643997178E8D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.3.0\",\"versionEndExcluding\":\"12.3.7\",\"matchCriteriaId\":\"C77AA4CC-A590-4948-A010-5A1154502E47\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"12.4.0\",\"versionEndExcluding\":\"12.4.4\",\"matchCriteriaId\":\"F820291A-C1C6-4DBC-8064-6133F16547C4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*\",\"versionStartIncluding\":\"13.0.0\",\"versionEndExcluding\":\"13.0.2\",\"matchCriteriaId\":\"643002A3-545F-4605-AAAF-EF55C5B14392\"}]}]}],\"references\":[{\"url\":\"https://grafana.com/security/security-advisories/cve-2026-33382\",\"source\":\"security@grafana.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-12T07:12:35+00:00",
      "cve": "CVE-2026-33382",
      "id": "CVE-2026-33382",
      "initial_release_date": "2026-07-10T14:58:23.329000+00:00",
      "product_status:fixed": "17",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "24",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "grafana: Grafana: Denial of Service via excessive memory allocation from large API request payloads",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33382.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-18T17:02:12Z",
      "cve": "CVE-2026-33382",
      "id": "CVE-2026-33382",
      "initial_release_date": "2026-07-15T05:19:02Z",
      "product_status:first_fixed": "14",
      "product_status:known_affected": "3",
      "product_status:recommended": "4",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-33382",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-33382.json",
      "version": "6"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-33382\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-10T15:59:38.846803Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-10T15:59:40.873Z\"}}], \"cna\": {\"title\": \"Denial of service via unbounded request body size\", \"source\": {\"discovery\": \"INTERNAL_FINDING\"}, \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\"}}], \"affected\": [{\"vendor\": \"Grafana\", \"product\": \"Grafana OSS\", \"versions\": [{\"status\": \"affected\", \"version\": \"11.6.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"11.6.14\"}, {\"status\": \"affected\", \"version\": \"12.2.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"12.2.8\"}, {\"status\": \"affected\", \"version\": \"12.3.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"12.3.6\"}, {\"status\": \"affected\", \"version\": \"12.4.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"12.4.3\"}, {\"status\": \"affected\", \"version\": \"13.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"13.0.1\"}], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-06-09T00:00:00.000Z\", \"references\": [{\"url\": \"https://grafana.com/security/security-advisories/cve-2026-33382\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400\"}]}], \"providerMetadata\": {\"orgId\": \"57da9224-a3e2-4646-9d0e-c4dc2e05e7da\", \"shortName\": \"GRAFANA\", \"dateUpdated\": \"2026-08-24T13:52:14.316Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-33382\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-24T13:52:14.316Z\", \"dateReserved\": \"2026-03-19T07:55:06.978Z\", \"assignerOrgId\": \"57da9224-a3e2-4646-9d0e-c4dc2e05e7da\", \"datePublished\": \"2026-07-10T14:58:23.329Z\", \"assignerShortName\": \"GRAFANA\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.