{"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"}}}}

{}

{"affected": [{"affectedData": [{"product": "grpc-node", "vendor": "grpc", "versions": [{"status": "affected", "version": "< 1.13.1"}, {"status": "affected", "version": ">= 1.14.0, < 1.14.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-101914", "lastModified": "2026-09-28T20:17:09.453", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-28T20:17:09.453", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4"}, {"source": "security-advisories@github.com", "url": "https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f"}, {"source": "security-advisories@github.com", "url": "https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75"}, {"source": "security-advisories@github.com", "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-187"}, {"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"created": "2026-09-28T20:30:06.944043+00:00", "updated": "2026-09-28T20:30:06.944058+00:00", "vendors": []}