CVE-2026-101915: @grpc/grpc-js The Server Transmits Some Error Vulnerability
LOWCVE-2026-101915 is a LOW (CVSS 3.7) the server transmits some error vulnerability (CWE-550: Server-generated Error Message Containing Sensitive Information) affecting @grpc/grpc-js libraries in the npm ecosystem. The issue involves the server transmits some error messages thrown by method handlers to the client in status messages. Remediation is available by upgrading affected packages to version 1.13.6, 1.14.5.
CVE-2026-101915 at a Glance
Security Impact
CVSS: 3.7
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).
How to Fix CVE-2026-101915
To remediate this vulnerability, upgrade all affected @grpc/grpc-js dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
npm install @grpc/grpc-js@1.13.6npm install @grpc/grpc-js@1.14.5Run the following command in your project directory to verify that all resolved dependencies use the patched release:
npm ls @grpc/grpc-jsHow to Check if You Are Affected
To determine whether your Node.js application is affected by CVE-2026-101915, inspect your project dependencies using npm:
npm ls @grpc/grpc-jsAnalyze the terminal output to locate any version of @grpc/grpc-js in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.13.6), your application is affected.
Note: The npm ls @grpc/grpc-js command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-550: Server-generated Error Message Containing Sensitive Information, where certain conditions, such as network failure, will cause a server error message to be displayed. In @grpc/grpc-js, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-101915 Affected @grpc/grpc-js Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
@grpc/grpc-js
|
npm |
< 1.13.6
|
1.13.6
|
|
@grpc/grpc-js
|
npm |
≥ 1.14.0
< 1.14.5
|
1.14.5
|
References
Frequently Asked Questions
What is CVE-2026-101915?
Which @grpc/grpc-js versions are affected?
What version fixes CVE-2026-101915?
Is @grpc/grpc-js affected?
What is the CVSS score of CVE-2026-101915?
What CWE is associated with CVE-2026-101915?
How can I check npm dependencies for CVE-2026-101915?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-f596-whhp-79r4",
"modified" : "2026-09-30T15:35:41Z",
"published" : "2026-09-30T15:35:41Z",
"aliases" : [ "CVE-2026-101915" ],
"summary" : "@grpc/grpc-js: The server transmits some error messages thrown by method handlers to the client in status messages",
"details" : "### Impact\nIf an application method handler crashes, the error message is included in the status message sent to the client. This can leak to the client any sensitive data that may be included in the error message. This impacts anyone using `@grpc/grpc-js` to run servers.\n\n### Patches\nThis vulnerability is fixed in 1.13.6 and 1.14.5.\n\n### Workarounds\nThis can be avoided by using a top-level error handler in method handlers to strip out sensitive error information.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "npm",
"name" : "@grpc/grpc-js"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.13.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "npm",
"name" : "@grpc/grpc-js"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.14.0"
}, {
"fixed" : "1.14.5"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/grpc/grpc-node/security/advisories/GHSA-f596-whhp-79r4"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-101915"
}, {
"type" : "WEB",
"url" : "https://github.com/grpc/grpc-node/commit/350de32860428cc62473a00bee4035360690ffea"
}, {
"type" : "WEB",
"url" : "https://github.com/grpc/grpc-node/commit/7c5c5181159c6ddd292805881ef2cdec29bb475f"
}, {
"type" : "WEB",
"url" : "https://github.com/grpc/grpc-node/commit/e8329b122ca99ba10877e990c2f6edd40224fd0d"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/grpc/grpc-node"
}, {
"type" : "WEB",
"url" : "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.13.6"
}, {
"type" : "WEB",
"url" : "https://github.com/grpc/grpc-node/releases/tag/@grpc/grpc-js%401.14.5"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-550" ],
"severity" : "LOW",
"github_reviewed" : true,
"github_reviewed_at" : "2026-09-30T15:35:41Z",
"nvd_published_at" : "2026-09-28T20:17:09Z"
}
}