{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.13.1"
              },
              {
                "introduced": "1.14.0"
              },
              {
                "fixed": "1.14.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "7db315d094b737f105fd7265dd69ab6d2a7bb2a1"
            },
            {
              "fixed": "83acea8513657debe36edefdc87f498ed0ecc035"
            },
            {
              "fixed": "8ce94a48ce59c2b73ce10a873aa4c55cdf806605"
            },
            {
              "fixed": "6cf64b596da03f1942a6b168998f0670217a99c4"
            },
            {
              "fixed": "a6c5b31180cc8cea94d0a5ea215ce31a49e0409f"
            },
            {
              "fixed": "f32f3712e44581d8dfc8359bd8d30096662f4c75"
            }
          ],
          "repo": "https://github.com/grpc/grpc-node",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-88h9-xgvx-hvf2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-187",
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101914.json"
  },
  "details": "@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.",
  "id": "CVE-2026-101914",
  "modified": "2026-09-30T11:30:47.635565282Z",
  "published": "2026-09-28T19:36:55.746Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/101xxx/CVE-2026-101914.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101914"
    },
    {
      "type": "FIX",
      "url": "https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4"
    },
    {
      "type": "FIX",
      "url": "https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f"
    },
    {
      "type": "FIX",
      "url": "https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "@grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches"
}