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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-27878",
        "assignerOrgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
        "state": "PUBLISHED",
        "assignerShortName": "GRAFANA",
        "dateReserved": "2026-02-24T14:30:17.726Z",
        "datePublished": "2026-06-19T19:02:27.028Z",
        "dateUpdated": "2026-07-10T18:44:36.230Z"
    },
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                "dateUpdated": "2026-07-10T18:44:36.230Z"
            },
            "datePublic": "2026-03-23T19:28:24.658Z",
            "title": "Tempo TraceQL query with exemplar hint could result in unbounded memory usage",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash. This could allow an authenticated user to trigger a denial of service against the Tempo service."
                }
            ],
            "affected": [
                {
                    "vendor": "Grafana",
                    "product": "Enterprise Traces (GET)",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "2.6.1",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "2.8.8"
                        }
                    ]
                },
                {
                    "vendor": "Grafana",
                    "product": "Tempo",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "2.6.0",
                            "status": "affected",
                            "versionType": "semver",
                            "lessThan": "2.10.2"
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://grafana.com/security/security-advisories/cve-2026-27878",
                    "tags": [
                        "vendor-advisory"
                    ]
                }
            ],
            "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"
                    }
                }
            ],
            "source": {
                "discovery": "INTERNAL_FINDING"
            },
            "x_generator": {
                "engine": "cvelib 1.8.0"
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        },
        "adp": [
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-400",
                                "lang": "en",
                                "description": "CWE-400 Uncontrolled Resource Consumption"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-22T17:09:51.414285Z",
                                "id": "CVE-2026-27878",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-23T12:14:04.829Z"
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}