{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-101914",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-09-28T15:55:37.907Z",
        "datePublished": "2026-09-28T19:36:55.746Z",
        "dateUpdated": "2026-09-28T19:46:53.330Z"
    },
    "containers": {
        "cna": {
            "title": "@grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-187",
                            "lang": "en",
                            "description": "CWE-187: Partial String Comparison",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-863",
                            "lang": "en",
                            "description": "CWE-863: Incorrect Authorization",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2"
                },
                {
                    "name": "https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4"
                },
                {
                    "name": "https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f"
                },
                {
                    "name": "https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75"
                },
                {
                    "name": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1"
                },
                {
                    "name": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1"
                }
            ],
            "affected": [
                {
                    "vendor": "grpc",
                    "product": "grpc-node",
                    "versions": [
                        {
                            "version": "< 1.13.1",
                            "status": "affected"
                        },
                        {
                            "version": ">= 1.14.0, < 1.14.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-28T19:46:53.330Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "@grpc/grpc-js implements the core functionality of gRPC purely in JavaScript, without a C++ addon. Prior to 1.13.1 and 1.14.1, the exact path (method name) matcher used by RBAC performs a prefix comparison instead of an equality comparison when case-insensitive matching is enabled. If one service method name prefixes another and the methods have different access rules, a request for the longer method can match the shorter method's rule and cause incorrect authorization. This issue is fixed in versions 1.13.1 and 1.14.1."
                }
            ],
            "source": {
                "advisory": "GHSA-88h9-xgvx-hvf2",
                "discovery": "UNKNOWN"
            }
        }
    }
}