{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-105759",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-05T19:11:07.948Z",
        "datePublished": "2026-10-05T22:58:01.362Z",
        "dateUpdated": "2026-10-06T17:56:44.425Z"
    },
    "containers": {
        "cna": {
            "title": "vLLM: Unbounded Prometheus label cardinality from attacker-controlled HTTP method tokens in the vLLM Rust frontend metrics middleware (unauthenticated denial of service)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-400",
                            "lang": "en",
                            "description": "CWE-400: Uncontrolled Resource Consumption",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/vllm-project/vllm/security/advisories/GHSA-5fj9-pfhr-6j48",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-5fj9-pfhr-6j48"
                },
                {
                    "name": "https://github.com/vllm-project/vllm/pull/56058",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vllm-project/vllm/pull/56058"
                },
                {
                    "name": "https://github.com/vllm-project/vllm/commit/3735c2d5f5248259482b9045c34fb7a8a3892352",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vllm-project/vllm/commit/3735c2d5f5248259482b9045c34fb7a8a3892352"
                },
                {
                    "name": "https://github.com/vllm-project/vllm/releases/tag/v0.30.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/vllm-project/vllm/releases/tag/v0.30.0"
                }
            ],
            "affected": [
                {
                    "vendor": "vllm-project",
                    "product": "vllm",
                    "versions": [
                        {
                            "version": "< 0.30.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-05T22:58:01.362Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "vLLM is an inference and serving engine for large language models. Prior to 0.30.0, the Rust frontend's track_http_metrics middleware records the raw HTTP method token as a Prometheus label for requests reaching registered routes. An unauthenticated attacker can send unique arbitrary method tokens to unguarded routes such as /tokenize, causing Prometheus's Family::get_or_create function to permanently create counter and histogram label sets. Those label sets increase process memory usage and enlarge the /metrics response until the service or monitoring path is exhausted. This issue is fixed in version 0.30.0."
                }
            ],
            "source": {
                "advisory": "GHSA-5fj9-pfhr-6j48",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-5fj9-pfhr-6j48",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-06T17:56:34.732350Z",
                                "id": "CVE-2026-105759",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2026-10-06T17:56:44.425Z"
                }
            }
        ]
    }
}