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CVE-2026-101914 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:9.1 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/grpc/grpc-node/commit/6cf64b596da03f1942a6b168998f0670217a99c4	[email protected]	Source CodeVendor
https://github.com/grpc/grpc-node/commit/a6c5b31180cc8cea94d0a5ea215ce31a49e0409f	[email protected]	Source CodeVendor
https://github.com/grpc/grpc-node/commit/f32f3712e44581d8dfc8359bd8d30096662f4c75	[email protected]	Source CodeVendor
https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.13.1	[email protected]	Release NotesVendor
https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js-xds%401.14.1	[email protected]	Release NotesVendor
https://github.com/grpc/grpc-node/security/advisories/GHSA-88h9-xgvx-hvf2	[email protected]	AdvisoryRemedyVendor

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-187	Partial String Comparison	[email protected]
CWE-863	Incorrect Authorization	[email protected]

Affected Products

Product	Versions
@grpc/grpc-js	< 1.13.1 (semver) 1.14.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 1.13.1moderate effort Upgrade: 1.14.1moderate effort Mitigation:low effort Enable case-sensitive path matching.
@grpc/grpc-js-xds	< 1.13.1 (semver) 1.14.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 1.13.1moderate effort Upgrade: 1.14.1moderate effort Mitigation:low effort Enable case-sensitive path matching.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 29, 2026	CVE Modified	CISA-ADP
Sep 28, 2026	New CVE Received	[email protected]