Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro_CVE-2026-33378

{
    "lastseen": "",
    "description": "Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.",
    "published": "2026-05-13T19:28:37.606Z",
    "modified": "2026-05-13T19:35:08.707Z",
    "type": "cve",
    "title": "Grafana Data Source Plugin: DoS (OOM) via Negative Interval Injection in $__timeGroup Macro",
    "source": "GRAFANA",
    "references": "https://grafana.com/security/security-advisories/cve-2026-33378",
    "id": "CVE-2026-33378",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Grafana Grafana OSS 8.0.0\nGrafana Grafana OSS 11.6.14\nGrafana Grafana OSS 12.0.0\nGrafana Grafana OSS 12.2.8\nGrafana Grafana OSS 12.3.0\nGrafana Grafana OSS 12.3.6\nGrafana Grafana OSS 12.4.0\nGrafana Grafana OSS 12.4.3\nGrafana Grafana OSS 13.0.0\nGrafana Grafana OSS 13.0.1",
    "sourceHref": "",
    "cvss": {
        "score": 6.5,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Grafana OSS",
    "version": "8.0.0",
    "vendor": "Grafana",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}