@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.
History

Tue, 29 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 28 Sep 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Grpc
Grpc grpc-node
Vendors & Products Grpc
Grpc grpc-node

Mon, 28 Sep 2026 20:00:00 +0000


Mon, 28 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
Description @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.
Title @grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches
Weaknesses CWE-187
CWE-863
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-09-28T19:36:55.746Z

Updated: 2026-09-29T19:21:17.564Z

Reserved: 2026-09-28T15:55:37.907Z

Link: CVE-2026-101914

cve-icon Vulnrichment

Updated: 2026-09-29T19:21:13.538Z

cve-icon NVD

Status : Deferred

Published: 2026-09-28T20:17:09.453

Modified: 2026-09-30T19:57:08.043

Link: CVE-2026-101914

cve-icon Redhat

No data.