CVE-2026-8609 (GCVE-0-2026-8609)
Vulnerability from cvelistv5
Published
2026-07-10 14:58
Modified
2026-08-27 17:22
CWE
Summary
An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (denial of service).
Impacted products
Vendor Product Version
Grafana Grafana OSS Version: 11.6.0    11.6.14
Version: 12.2.0    12.2.8
Version: 12.3.0    12.3.6
Version: 12.4.0    12.4.3
Version: 13.0.0    13.0.1
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-8609",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-10T15:53:40.169487Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-400",
                "description": "CWE-400 Uncontrolled Resource Consumption",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-10T15:53:51.365Z",
          "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"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "cyberjoker (Researcher)"
        }
      ],
      "datePublic": "2026-06-09T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An unauthenticated attacker can repeatedly call Grafana\u0027s OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (denial of service)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T17:22:37.575Z",
        "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
        "shortName": "GRAFANA"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://grafana.com/security/security-advisories/cve-2026-8609"
        }
      ],
      "source": {
        "discovery": "BUG_BOUNTY"
      },
      "title": "Pre-authentication denial of service via the OAuth login route",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
    "assignerShortName": "GRAFANA",
    "cveId": "CVE-2026-8609",
    "datePublished": "2026-07-10T14:58:33.522Z",
    "dateReserved": "2026-05-14T16:01:42.297Z",
    "dateUpdated": "2026-08-27T17:22:37.575Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-8609\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-10T15:53:40.169487Z\"}}}], \"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\": \"2026-07-10T15:53:27.882Z\"}}], \"cna\": {\"title\": \"Pre-authentication denial of service via the OAuth login route\", \"source\": {\"discovery\": \"BUG_BOUNTY\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"cyberjoker (Researcher)\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\"}}], \"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-2026-8609\", \"tags\": [\"vendor-advisory\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"An unauthenticated attacker can repeatedly call Grafana\u0027s OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (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\": \"2026-08-26T08:50:29.001Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-8609\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-26T08:50:29.001Z\", \"dateReserved\": \"2026-05-14T16:01:42.297Z\", \"assignerOrgId\": \"57da9224-a3e2-4646-9d0e-c4dc2e05e7da\", \"datePublished\": \"2026-07-10T14:58:33.522Z\", \"assignerShortName\": \"GRAFANA\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…