CVE-2026-101914
@grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
@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.
| CWE | CWE-187 CWE-863 |
| Vendor | grpc |
| Product | grpc-node |
| Published | Sep 28, 2026 |
| Last Updated | Sep 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None
Affected Versions
grpc / grpc-node
< 1.13.1 >= 1.14.0, < 1.14.1
References
github.com: https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2 github.com: https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4 github.com: https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f github.com: https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75 github.com: https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1 github.com: https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1