CVE-2026-101914
@grpc/grpc-js: The exact path match matcher incorrectly only applies a prefix match for case-insensitive matches
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N |
| NVDNVD · Deferred | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.25% · top 83% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npm@grpc/grpc-js-xdsGHSA-88h9-xgvx-hvf2 (opens in a new tab)
References (6)
- https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4 (opens in a new tab)x_refsource_MISC
- https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f (opens in a new tab)x_refsource_MISC
- https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75 (opens in a new tab)x_refsource_MISC
- https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1 (opens in a new tab)x_refsource_MISC
- https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-88h9-xgvx-hvf2 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-101914)Record last updated .