CVE-2026-88858 (GCVE-0-2026-88858)
Vulnerability from cvelistv5
Published
2026-10-28 16:50
Modified
2026-10-28 16:50
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
Summary
A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts.
References
Impacted products
Vendor Product Version
Grafana Grafana OSS Version: 7.4.0   ≤ 11.6.16
Version: 12.0.0   ≤ 12.2.10
Version: 12.3.0   ≤ 12.3.11
Version: 12.4.0   ≤ 12.4.13
Version: 13.0.0   ≤ 13.0.11
Version: 13.1.0   ≤ 13.1.8
Version: 13.2.0   ≤ 13.2.4
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   Grafana Grafana Enterprise Version: 7.4.0   ≤ 11.6.16
Version: 12.0.0   ≤ 12.2.10
Version: 12.3.0   ≤ 12.3.11
Version: 12.4.0   ≤ 12.4.13
Version: 13.0.0   ≤ 13.0.11
Version: 13.1.0   ≤ 13.1.8
Version: 13.2.0   ≤ 13.2.4
 Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Grafana OSS",
          "vendor": "Grafana",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.2.10",
              "status": "affected",
              "version": "12.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.3.11",
              "status": "affected",
              "version": "12.3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.4.13",
              "status": "affected",
              "version": "12.4.0",
              "versionType": "semver"
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            {
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              "status": "affected",
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              "versionType": "semver"
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            {
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              "status": "affected",
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              "versionType": "semver"
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              "status": "affected",
              "version": "13.2.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Grafana Enterprise",
          "vendor": "Grafana",
          "versions": [
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              "status": "affected",
              "version": "7.4.0",
              "versionType": "semver"
            },
            {
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              "status": "affected",
              "version": "12.0.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "12.3.11",
              "status": "affected",
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              "versionType": "semver"
            },
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              "status": "affected",
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              "versionType": "semver"
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            {
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              "status": "affected",
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            {
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              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Mukul Goyal"
        }
      ],
      "datePublic": "2026-10-27T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A user with the Viewer role in Grafana can crash the server by submitting a crafted server-side math expression (uncontrolled recursion). A user with permission to provision alert rules can make the outage persist across restarts."
        }
      ],
      "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-674",
              "description": "CWE-674",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-28T16:50:17.291Z",
        "orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
        "shortName": "GRAFANA"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://grafana.com/security/security-advisories/cve-2026-88858"
        }
      ],
      "source": {
        "discovery": "EXTERNAL_REPORT"
      },
      "title": "Server-side expression parser denial of service"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
    "assignerShortName": "GRAFANA",
    "cveId": "CVE-2026-88858",
    "datePublished": "2026-10-28T16:50:17.291Z",
    "dateReserved": "2026-09-10T10:30:46.142Z",
    "dateUpdated": "2026-10-28T16:50:17.291Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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