Medium severity6.5NVD Advisory· Published Sep 28, 2026· Updated Sep 30, 2026
CVE-2026-101914
CVE-2026-101914
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@grpc/grpc-js-xdsnpm | < 1.13.1 | 1.13.1 |
@grpc/grpc-js-xdsnpm | >= 1.14.0, < 1.14.1 | 1.14.1 |
Affected products
2Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-88h9-xgvx-hvf2ghsaADVISORY
- github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4nvdWEB
- github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409fnvdWEB
- github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75nvdWEB
- github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1nvdWEB
- github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1nvdWEB
- github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2nvdWEB
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